Best Astronomy Software Reviews 2025

Welcome to my comprehensive guide to the best astronomy software available today! Whether you’re just starting out with stargazing, a seasoned visual observer with a large-aperture telescope, or an astrophotographer perfecting long-exposure imaging, you are covered. Explore the Best Astronomy Software for Beginners to get started, or dive into the Best Astronomy Software for Visual Observers with Larger Aperture Telescopes if you’re tackling faint deep-sky objects. If you’re interested in real-time imaging, check out the Top Software for Real-Time Imaging in Electronic Assisted Astronomy (EAA) . Finally, for those focused on capturing breathtaking long-exposure astrophotography, don’t miss my picks for the Best Astronomy Software for Long-Exposure Imaging . Whatever your focus, you’ll find the tools you need to elevate your experience under the stars.

Best Astronomy Software for Beginners

Starting in astronomy can be overwhelming, but the right software can make the learning process engaging and fun. This list highlights the best tools for beginners to explore the night sky, learn about celestial objects, and develop foundational skills in astronomy. These software options are chosen for their accessibility, ease of use, and potential to grow with the user as they advance in the hobby.

Stellarium

Platforms: Windows, macOS, Linux, iOS, Android
Pricing: Free on desktop; ~$3 on mobile
Pitch: Stellarium is a beautifully designed planetarium software that offers a realistic simulation of the night sky. Perfect for beginners, it allows users to explore constellations, planets, and deep-sky objects from any location and time. Its intuitive interface makes it a great entry point for learning the basics of stargazing and navigation.
Pros: Stunning sky visualization, free desktop version, easy to use.
Cons: Limited to exploration and planning; lacks integration with advanced telescope setups.
Stellarium https://stellarium.org

SkySafari Plus

Platforms: iOS, Android, macOS
Pricing: $19.99
Pitch: SkySafari Plus is a mobile-friendly app that combines a rich celestial database with interactive sky charts and telescope control capabilities. Its educational tools, such as historical details and object descriptions, make it a fun way for beginners to deepen their knowledge while exploring the cosmos.
Pros: Mobile compatibility, easy-to-navigate interface, telescope control.
Cons: Primarily focused on mobile; fewer advanced features than desktop software.
Simulation Curriculum https://skysafariastronomy.com

SkyTools 4 Visual Standard Edition

Platforms: Windows, macOS with an emulator
Pricing: $99.95
Pitch: SkyTools 4 Visual Standard Edition is a beginner-friendly version of professional-grade astronomy software, designed to grow with the user. Its structured observing lists, easy to use custom finder charts, and a detailed atlas make it an excellent educational tool. Learning its basic concepts helps beginners build a strong foundation in astronomy while easing the transition to more advanced techniques. Whether their interests lead to larger telescopes, advanced deep-sky observing, or long-exposure imaging, more advanced versions are available to grow with them.
Pros: Grows with the user, excellent for learning foundational astronomy skills, tailored observing tools.
Cons: Initial setup may require some guidance for beginners.
Skyhound https://skyhound.com

Star Walk 2

Platforms: iOS, Android
Pricing: Free version with ads; $2.99 for ad-free version, with optional in-app purchases
Pitch: Star Walk 2 offers an interactive and visually engaging way to explore the night sky. With its augmented reality mode, users can point their device at the sky to identify stars, planets, and constellations in real time. It’s perfect for casual stargazing and learning basic astronomy.
Pros: Intuitive, real-time augmented reality sky guide, low-cost mobile app.
Cons: Limited to casual exploration; lacks advanced features.
Vito Technology https://vitotechnology.com/star-walk.html

SkyPortal (by Celestron)

Platforms: iOS, Android
Pricing: Free
Pitch: SkyPortal is an excellent companion for beginners with Celestron telescopes, offering a user-friendly interface and a robust database of celestial objects. Its guided tours and telescope integration make it a great starting point for hands-on observing.
Pros: Free, integrates seamlessly with Celestron telescopes, beginner-friendly guided tours.
Cons: Limited to users with compatible Celestron equipment.
Celestron https://www.celestron.com/pages/skyportal-mobile-app

   Recommendation: If you’re looking for the perfect starting point in astronomy, Stellarium is a fantastic choice. Its realistic sky simulation and intuitive interface make it easy to explore constellations and planets from the comfort of your home, all while learning the basics of stargazing. For those who prefer a mobile-focused experience, SkySafari Plus offers an excellent combination of interactivity and functionality, letting you explore the cosmos on the go while connecting to your telescope for a more hands-on approach. If you want software that can grow with you, SkyTools 4 Visual Standard Edition is an invaluable tool. It not only helps you build strong foundational skills but also equips you with advanced observing tools as your knowledge and ambitions expand. Each of these options is chosen with beginners in mind, providing accessibility and room to grow as you embark on your astronomical journey.

Best Astronomy Software for Visual Observers with Larger Aperture Telescopes (10–20 inches and beyond)

For advanced visual observers with large aperture telescopes who frequent dark sites, attend national star parties, and seek out faint deep-sky objects using advanced techniques, the following software offers the features needed to maximize their experience. This group values extensive corrected data and features for advanced planning and execution.

SkyTools 4 Visual Professional Edition

Platforms: Windows, macOS with emulator
Pricing: $169.95
Pitch: SkyTools 4 Visual is an unmatched tool for serious visual observers, providing a meticulously designed planning and observing workflow tailored for advanced techniques. With features like custom observing lists, visibility analysis based on specific telescope and site conditions, unique finder charts, and a detailed star atlas, it empowers users to tackle the faintest and most obscure objects. Its focus on maximizing observing time and efficiency makes it an essential companion for those using large-aperture telescopes under dark skies.
Pros: Comprehensive planning tools, extensive highly-corrected database, deep-sky visibility analysis, customizable for telescope setups and conditions, tailored specifically for visual observing.
Cons: Advanced features require some learning to fully master.
Skyhound https://skyhound.com

TheSkyX (Professional Edition)

Platforms: Windows, macOS, Linux, Raspbian
Pricing: $349 (base version); optional modules available for additional functionality
Pitch: TheSkyX remains the gold standard for advanced observers with large telescopes. Its extensive database, advanced telescope control, and modular expandability cater to those who need a professional-grade tool for finding the most challenging celestial objects. Its basic planning features and ability to integrate imaging systems make it a staple for advanced astronomers.
Pros: Extensive database, highly accurate telescope control, modular expandability, and professional features for advanced techniques.
Cons: High cost, complex interface, requires a learning curve to master.
Software Bisque https://bisque.com

SkySafari Pro

Platforms: iOS, Android, macOS
Pricing: $49.99
Pitch: SkySafari Pro earns its place as a must-have for advanced observers seeking a mobile-friendly solution with professional-grade features. Its database includes over 100 million stars and 3 million galaxies, perfect for identifying faint and obscure objects. Real-time telescope control and a clean interface make it an indispensable tool for deep-sky exploration at remote dark sites.
Pros: Massive database, user-friendly, real-time telescope control, mobile compatibility for on-the-go use.
Cons: Limited desktop compatibility; lacks some advanced planning tools of TheSkyX.
Simulation Curriculum https://skysafariastronomy.com

AstroPlanner

Platforms: Windows, macOS
Pricing: $45
Pitch: AstroPlanner is a powerhouse for advanced observers who meticulously plan their sessions. It allows users to optimize observing schedules for difficult targets and obscure objects. Customization for telescope types and integration with advanced equipment make it an excellent choice for methodical planners who want to push their limits.
Pros: Comprehensive planning tools, customizable for different telescopes, cost-effective.
Cons: No real-time sky visualization, less dynamic than SkySafari or TheSkyX.
AstroPlanner https://astroplanner.net

Deep-Sky Planner

Platforms: Windows
Pricing: $75
Pitch: Deep-Sky Planner is tailored for those who focus on faint deep-sky objects and obscure targets. Its robust catalog-driven approach ensures observers have the most detailed information available, while its integration with other software makes it a versatile planning tool for advanced sessions.
Pros: Excellent for deep-sky planning, detailed object catalogs, integrates with other tools for added functionality.
Cons: Lacks interactive features like real-time sky navigation; focused mainly on database-driven planning.
Knightware https://knightware.biz/dsp/

Cartes du Ciel (SkyChart)

Platforms: Windows, macOS, Linux
Pricing: Free
Pitch: Cartes du Ciel offers powerful customization for detailed sky charting, making it an excellent choice for advanced observers who demand precise star maps tailored to their telescopes. While its interface feels dated, its functionality and extensive databases provide valuable resources for planning sessions at dark sites.
Pros: Free, highly customizable, supports advanced planning for challenging targets.
Cons: Complex and outdated interface; no real-time visualization.
Patrick Chevalley https://ap-i.net/skychart/

Stellarium (Advanced Use)

Platforms: Windows, macOS, Linux, iOS, Android
Pricing: Free on desktop; ~$3 for mobile
Pitch: Stellarium rounds out the list as a flexible and visually appealing option for those who prioritize realistic sky views. While it lacks the depth of databases found in TheSkyX or SkySafari Pro, its telescope control plugins and flexibility make it a useful supplement for planning and navigating the night sky.
Pros: Free on desktop, visually realistic sky views, useful plugins for advanced users.
Cons: Smaller database than top-ranked options; requires setup for advanced features like telescope control.
Stellarium https://stellarium.org

   Recommendation: If you’re an advanced visual observer, SkyTools 4 Visual Professional Edition is the ultimate companion for tackling the faintest and most challenging celestial objects. Its advanced planning tools and deep-sky visibility analysis, tailored to your specific telescope and site conditions, ensure you make the most of your observing sessions. For those with complex telescope setups, TheSkyX provides a large database and robust features, making it an invaluable tool for navigating the night sky and finding elusive targets. If portability and ease of use are your priorities, SkySafari Pro offers powerful mobile capabilities and real-time telescope navigation, perfect for on-the-go exploration at remote dark sites. For methodical planners, AstroPlanner and Deep-Sky Planner provide structured tools to optimize your sessions and systematically tackle obscure objects. Meanwhile, Cartes du Ciel and Stellarium round out the list with their visualization and charting capabilities, serving as excellent supplements for planning and navigation.

Top Software for Real-Time Imaging in Electronic Assisted Astronomy (EAA)

Software for Live Stacking and Camera Control

For those exploring Electronic Assisted Astronomy (EAA), the following software options are tailored to enhance live viewing with cameras, enabling real-time observation of deep-sky objects. This list includes tools that facilitate live stacking, control cameras and mounts, and manage EAA sessions. Some software pairs effectively with others, offering complementary functionality to streamline the EAA workflow.

SharpCap

Platforms: Windows
Pricing: Free (basic version); Pro version $15/year
Pitch: SharpCap leads the pack for EAA, offering an intuitive platform for live stacking, camera control, and real-time adjustment of images. Its powerful histogram tools and seamless integration with various cameras make it the go-to choice for both beginners and advanced users. The Pro version adds advanced features like polar alignment and sensor analysis, making it a robust tool for optimizing observing sessions.
Pros: User-friendly, excellent live stacking, integrates well with popular cameras, affordable Pro version.
Cons: Windows-only; requires compatible hardware for full functionality.
SharpCap https://www.sharpcap.co.uk

NINA (Nighttime Imaging ‘N’ Astronomy)

Platforms: Windows
Pricing: Free
Pitch: While NINA is primarily known for astrophotography, its robust features for camera and mount control make it an excellent companion for EAA. With plugins and custom workflows, it supports live viewing sessions alongside imaging, making it a versatile option for those who also want to dabble in longer exposure captures.
Pros: Advanced automation tools, plugin support, strong integration with mounts and cameras, free.
Cons: Primarily designed for imaging; setup can be complex for EAA-specific workflows.
NINA https://nighttime-imaging.eu

ASIAIR (by ZWO)

Platforms: iOS, Android (requires ZWO ASIAIR hardware)
Pricing: ASIAIR Plus hardware ~$299
Pitch: ASIAIR combines software and hardware into a streamlined ecosystem, offering an easy-to-use platform for camera control, live stacking, and telescope management. Designed for ZWO camera users, it provides an intuitive app-based interface that simplifies EAA for those using compatible equipment.
Pros: Fully integrated hardware/software system, excellent live stacking, intuitive mobile app.
Cons: Requires ZWO cameras and ASIAIR hardware; limited flexibility with other brands.
ZWO https://astronomy-imaging-camera.com

Voyager

Platforms: Windows
Pricing: ~$150 for base license
Pitch: Voyager is a highly versatile software designed for automation and imaging, but it offers powerful tools for EAA workflows as well. Its robust scripting capabilities and real-time image monitoring make it ideal for advanced users who want fine control over their sessions.
Pros: Highly customizable, real-time monitoring, supports advanced automation.
Cons: Complex interface, more tailored for imaging than pure EAA use.
Voyager https://software.starkeeper.it

AstroToaster

Platforms: Windows
Pricing: Free (donation-supported)
Pitch: AstroToaster is a lightweight yet effective tool for live stacking, particularly suited for users looking to integrate it with existing capture software like SharpCap or NINA. Its simplicity and compatibility with various file formats make it a great secondary tool for enhancing EAA sessions.
Pros: Simple and effective live stacking, works well in tandem with other software.
Cons: Lacks camera control; requires additional software for capturing images.
AstroToaster https://astrotortilla.sourceforge.net/AstroToaster.html

 Recommendation: If you’re diving into Electronic Assisted Astronomy, SharpCap is the top choice for its user-friendly design and exceptional live stacking capabilities. Whether you’re a beginner or an experienced observer, its real-time image adjustments and seamless integration with popular cameras make it an indispensable tool for enhancing your sessions. For those looking to combine EAA with astrophotography, NINA offers unparalleled automation and integration, allowing you to explore both worlds effortlessly. If you’re using ZWO cameras, ASIAIR provides a streamlined, intuitive experience that integrates hardware and software into a cohesive ecosystem. For advanced users seeking precise control, Voyager stands out with its powerful automation and real-time monitoring tools. And if you’re looking to complement your workflow, AstroToaster delivers lightweight yet effective live stacking, perfect for pairing with other software to get the most out of your EAA sessions. Whatever your needs, this list ensures you have the right tools to make your time under the stars as rewarding as possible. 

Best General Astronomy Software to Complement Electronic Assisted Astronomy

In addition to the specialized EAA software that facilitates live stacking and camera control, general-purpose astronomy software can enhance EAA by aiding in planning, target selection, and session management. These tools are essential for deciding what to observe and can work in tandem with EAA-specific software to maximize efficiency and enjoyment.

Stellarium

Platforms: Windows, macOS, Linux, iOS, Android
Pricing: Free on desktop; ~$3 on mobile
Pitch: Stellarium is an exceptional tool for EAA observers to identify targets and plan sessions. Its realistic sky simulation helps users visualize what will be visible at their observing site and time. While it lacks direct integration with EAA-specific software, it excels in offering intuitive navigation of the night sky, making it an ideal starting point for EAA sessions.
Pros: Stunning sky simulations, user-friendly, free on desktop, highly customizable.
Cons: No direct integration with specialized EAA software; requires switching between programs for coordination.
Stellarium https://stellarium.org

SkySafari Pro

Platforms: iOS, Android, macOS
Pricing: $49.99
Pitch: SkySafari Pro’s extensive database and telescope control capabilities make it a powerful companion for EAA. Its deep catalog of objects allows for easy identification of faint and obscure targets, perfectly complementing live-stacking software like SharpCap. Its mobile-friendly design ensures it can be used alongside your EAA hardware in the field.
Pros: Large database, intuitive interface, telescope control, mobile compatibility.
Cons: Limited to compatible mounts and devices; not tailored specifically for EAA workflows.
Simulation Curriculum https://skysafariastronomy.com

AstroPlanner

Platforms: Windows, macOS
Pricing: $45
Pitch: AstroPlanner is ideal for EAA users who want to meticulously plan their observing sessions. Its ability to create custom lists of targets and optimize observing schedules based on location and equipment pairs well with the quick imaging capabilities of EAA. By feeding detailed plans into tools like SharpCap, observers can tackle challenging deep-sky objects efficiently.
Pros: Detailed planning features, customizable for telescope setups, cost-effective.
Cons: No real-time visualization; requires exporting plans to use in tandem with EAA-specific software.
AstroPlanner https://astroplanner.net

Cartes du Ciel (SkyChart)

Platforms: Windows, macOS, Linux
Pricing: Free
Pitch: Cartes du Ciel offers highly detailed star charts that can be customized for EAA observing. It is particularly effective for identifying faint or obscure targets and generating precise charts for navigation. While not built specifically for EAA, its ability to chart and annotate targets makes it a useful companion when used alongside live-stacking tools.
Pros: Free, highly customizable, extensive database.
Cons: Dated interface; lacks real-time image integration with EAA tools.
Patrick Chevalley https://ap-i.net/skychart

Deep-Sky Planner

Platforms: Windows
Pricing: $75
Pitch: Deep-Sky Planner is a powerful catalog-driven tool, perfect for EAA observers looking to target faint and obscure objects. Its integration with planetarium software makes it a valuable complement to EAA tools like SharpCap, enabling users to focus their live sessions on well-researched targets.
Pros: Extensive object catalogs, excellent for planning obscure target observations, integrates well with other tools.
Cons: No real-time sky visualization; primarily focused on planning.
Knightware https://knightware.biz/dsp/

SkyTools 4 Visual Professional Edition (Honorable Mention)

Platforms: Windows
Pricing: $199.95
Pitch: Although designed primarily for visual observing, SkyTools 4 Visual Professional Edition also offers features that make it a valuable companion for EAA. Its powerful planning tools, detailed object visibility analysis, and observing lists translate well to the needs of electronically assisted astronomy. Additionally, the developers at Skyhound have announced they are working on an expansion to this version that will introduce features specifically tailored for EAA, making it a compelling choice for users looking for software that bridges the gap between visual and assisted astronomy.
Pros: Excellent planning tools, detailed visibility analysis, adaptable to EAA workflows.
Cons: Current version lacks EAA-specific features (although they are in development).
Skyhound https://skyhound.com

Recommendation: To get the most out of Electronic Assisted Astronomy, consider combining the strengths of general astronomy software with specialized EAA tools. For planning and target selection, Stellarium or SkySafari Pro are invaluable. With their realistic sky simulations and extensive object databases, they help you visualize what’s visible at your site and seamlessly guide your observing sessions. Pair these with SharpCap or another live-stacking tool to bring those celestial targets to life in real-time.

If you’re the type who likes to meticulously plan your sessions, AstroPlanner or Deep-Sky Planner can help you create detailed observing lists and optimize your workflow for efficiency. These tools ensure your time is spent observing, not searching. For those who need a robust star chart for navigating faint targets, Cartes du Ciel provides highly detailed, customizable charts that make an excellent reference while your EAA tools handle live imaging.

Honorable Mention: SkyTools 4 Visual Professional Edition also stands out as an excellent companion for EAA. Its robust planning tools and detailed visibility analysis, designed for visual observing, translate seamlessly into EAA workflows. Even more exciting, Skyhound has announced upcoming features tailored specifically for EAA, which promises to make it an even more versatile tool in the near future.

By pairing the planning and visualization capabilities of general-purpose software with the real-time magic of EAA tools, you’ll have everything you need to explore the night sky efficiently and enjoyably, even tackling the most elusive deep-sky objects. With the potential of SkyTools’ upcoming EAA features, the future of EAA has never looked brighter.

Best Astronomy Software for Long-Exposure Imaging

Best Software for Image Capture and Automation

Astrophotography relies heavily on software that automates the complex tasks of controlling your telescope, camera, filters, and other equipment. Often referred to as “sequencers,” these tools do much more than automate sequences; they enable automated imaging through features like auto-focus, plate solving, dithering, and advanced scripting. Below is a list of the best software for managing the capture phase of astrophotography.

NINA (Nighttime Imaging ‘N’ Astronomy)

Platforms: Windows
Pricing: Free
Pitch: NINA leads this category due to its exceptional range of features for controlling imaging sessions. From plate solving to automated focusing, framing tools, and multi-target session planning, it simplifies complex workflows. Its plugin ecosystem allows further customization, making it a favorite among astrophotographers of all skill levels.
Pros: Free, robust feature set, plugin support for customization, active community.
Cons: Steeper learning curve for new users; Windows-only.
NINA https://nighttime-imaging.eu

Sequence Generator Pro (SGP)

Platforms: Windows
Pricing: $149 (lifetime license)
Pitch: Sequence Generator Pro excels at managing multi-target imaging sessions with ease. Features like auto-focus, filter wheel integration, and plate solving make it a reliable choice for streamlining astrophotography workflows. Its simple, intuitive interface appeals to users who value ease of use while maintaining advanced functionality.
Pros: User-friendly, integrates with a wide range of equipment, powerful sequencing tools.
Cons: Windows-only; lacks the modular flexibility of NINA.
Sequence Generator Pro https://mainsequencesoftware.com

Voyager

Platforms: Windows
Pricing: ~$150 for base license
Pitch: Voyager stands out for its precise automation and robust scripting capabilities. It is particularly well-suited for advanced users with complex setups or permanent observatories. Its DragScript feature allows complete customization of imaging workflows, from calibration to imaging multiple targets over multiple nights.
Pros: Advanced scripting, excellent for remote and multi-night automation, supports sophisticated setups.
Cons: Complex interface; not ideal for beginners.
Voyager https://software.starkeeper.it

APT (Astro Photography Tool)

Platforms: Windows
Pricing: Free (basic version); $21/year (Pro version)
Pitch: APT is a versatile and budget-friendly software for camera and telescope control. It includes features like plate solving, focusing aids, and advanced imaging plans, making it a solid choice for astrophotographers transitioning from basic to more advanced imaging setups.
Pros: Affordable, easy to use, rich feature set for its price.
Cons: Less advanced than NINA or Voyager; Windows-only.
APT https://www.astrophotography.app/

ASIAIR (by ZWO)

Platforms: iOS, Android (requires ZWO ASIAIR hardware)
Pricing: ASIAIR Plus hardware ~$299
Pitch: ASIAIR offers an integrated hardware/software solution for ZWO users, providing seamless control of cameras, mounts, and accessories. Its mobile app makes it ideal for field use, with features like live stacking and auto-focus adding to its appeal for astrophotographers seeking a simplified setup.
Pros: Fully integrated ecosystem, user-friendly mobile app, excellent hardware-software compatibility.
Cons: Limited to ZWO cameras and ASIAIR hardware; less flexible than software-only solutions.
ZWO https://astronomy-imaging-camera.com

Ekos (INDI)

Platforms: Windows, macOS, Linux, Raspberry Pi
Pricing: Free
Pitch: Ekos, part of the INDI framework, is an open-source platform that offers comprehensive control over astrophotography equipment. With support for multiple operating systems and a modular design, it caters to users who value flexibility and customization. Its all-in-one approach includes features like auto-focus, plate solving, and guiding.
Pros: Cross-platform support, open-source, highly flexible, supports a wide range of devices.
Cons: Steeper learning curve, less polished interface compared to commercial alternatives.
Ekos https://indilib.org

Recommendation: If you’re exploring long-exposure astrophotography, NINA is an unbeatable choice for its versatility, extensive feature set, and free availability. Whether you’re a beginner or an advanced user, its tools for plate solving, auto-focus, and multi-target planning offer everything you need to streamline your imaging sessions. For those who prefer a simpler interface with equally powerful sequencing capabilities, Sequence Generator Pro is a fantastic alternative that’s user-friendly yet highly effective.

If you have a permanent observatory or need precise control over complex setups, Voyager shines with its advanced automation and scripting tools, perfect for multi-night workflows. Hobbyists looking for a budget-friendly option will find APT an excellent choice, with plenty of features to grow into without breaking the bank. For ZWO users, ASIAIR offers a mobile-friendly and fully integrated ecosystem, making imaging in the field intuitive and efficient. Finally, if cross-platform support and open-source customization are important to you, Ekos delivers a flexible solution with powerful tools for managing every aspect of your imaging setup.

No matter your experience level or equipment, these tools are designed to make the capture process efficient, reliable, and tailored to your specific needs, ensuring you can focus on producing stunning images of the night sky.

Best General-Purpose Software for Astrophotography Planning and Support

Astrophotography requires more than just capturing images; effective planning, target selection, and session optimization are essential. This list highlights software that complements telescope and camera control tools by helping users identify and plan targets, analyze conditions, and manage their observing sessions. These tools fill the gaps left by capture automation software, ensuring astrophotographers are well-prepared.

SkyTools 4 Imaging

Platforms: Windows; macOS with an emulator
Pricing: $249.95
Pitch: SkyTools 4 Imaging sets the gold standard for astrophotography planning with its sophisticated tools for target selection, session optimization, and advanced visibility analysis. Designed specifically for astrophotographers, it calculates optimal imaging times based on your equipment, location, and desired target. One of its most innovative features is the ability to generate detailed target plans for NINA that include specific start and end times, enabling the creation of true schedules. Unlike simple sequences, these schedules align seamlessly with the night’s observing conditions, ensuring every imaging session is optimized for efficiency.
Pros: Comprehensive planning features, advanced visibility analysis tailored to specific setups, detailed session optimization, intuitive and workflow-oriented design, integrates with NINA for schedule creation.
Cons: Advanced features may require time to master.
Skyhound https://skyhound.com

TheSkyX (Professional Edition)

Platforms: Windows, macOS, Linux, Raspbian
Pricing: $349 (base version); additional modules for enhanced functionality
Pitch: TheSkyX Professional Edition is a comprehensive tool for astrophotography planning, offering extensive celestial data, advanced planning features, and integration with telescopes and imaging software. Its ability to create detailed charts and plan complex imaging sessions makes it invaluable for serious astrophotographers.
Pros: Extensive catalog of celestial objects, general planning tools, integration with advanced equipment, highly customizable.
Cons: Expensive; requires a learning curve to fully utilize its advanced features.
Software Bisque https://bisque.com

Starry Night Pro Plus 8

Platforms: Windows, macOS
Pricing: $179.95
Pitch: Starry Night Pro Plus 8 offers a visually stunning simulation of the night sky alongside advanced planning features. Its deep catalog and ability to simulate astrophotography setups make it an excellent choice for planning long-exposure imaging sessions. The software provides high-resolution sky data and customization tools to optimize imaging plans for specific equipment and conditions.
Pros: Beautiful sky simulation, extensive object catalog, useful for framing astrophotography shots.
Cons: Less focused on workflow integration compared to TheSkyX or AstroPlanner.
Simulation Curriculum https://starrynight.com

AstroPlanner

Platforms: Windows, macOS
Pricing: $45
Pitch: AstroPlanner’s technical focus and advanced visibility analysis make it a highly effective tool for astrophotography planning. Its customizable target lists, session optimization tools, and telescope-specific tailoring make it a cost-effective yet powerful choice for experienced users.
Pros: Tailored for technical planning, supports a wide range of telescopes, affordable.
Cons: No real-time sky visualization; less polished interface.
AstroPlanner https://astroplanner.net

Deep-Sky Planner

Platforms: Windows
Pricing: $75
Pitch: Deep-Sky Planner’s rich catalog and data-driven approach make it an excellent tool for astrophotographers targeting faint or obscure deep-sky objects. Its ability to integrate with external planetarium software enhances its functionality, and it excels in providing detailed information about targets.
Pros: Excellent database for faint objects, integrates well with other software, supports advanced target planning.
Cons: Data-focused interface may not appeal to those seeking visual aids.
Knightware https://knightware.biz/dsp/

Cartes du Ciel (SkyChart)

Platforms: Windows, macOS, Linux
Pricing: Free
Pitch: Cartes du Ciel’s detailed and customizable star charts make it a staple for advanced astrophotographers who need precise maps tailored to their telescope setups. It integrates well with other imaging and guiding software, offering detailed ephemeris data and planning tools.
Pros: Free, highly customizable, excellent for creating precise star charts.
Cons: Outdated interface; less intuitive than paid alternatives.
Patrick Chevalley https://ap-i.net/skychart/

SkySafari Pro

Platforms: iOS, Android, macOS
Pricing: $49.99
Pitch: SkySafari Pro offers a portable, comprehensive solution for planning astrophotography sessions. Its deep object catalog, cross-referencing capabilities, and telescope control make it particularly useful for field use at remote dark sites. While it doesn’t have as many advanced planning features as desktop software, its mobility is a key strength.
Pros: Extensive database, intuitive mobile app, integrates with telescopes.
Cons: Primarily mobile-focused; lacks advanced session planning features.
Simulation Curriculum https://skysafariastronomy.com

Recommendation: For astrophotographers seeking to optimize their imaging sessions, SkyTools 4 Imaging is the ultimate planning tool. It stands out for its unmatched ability to generate detailed schedules tailored to your equipment and conditions, ensuring every session is as efficient as possible. One of its most powerful features is the ability to create target sequences directly for NINA, enabling true scheduling that aligns perfectly with the night’s observing conditions. This seamless integration makes it a must-have for astrophotographers who use NINA for capture automation.

For those who value integration with telescopes and imaging software and robust planning features, TheSkyX offers a comprehensive solution that pairs well with advanced imaging setups. If you’re looking for a visually stunning planning experience, Starry Night Pro Plus 8 combines aesthetics with powerful tools for target selection and imaging preparation.

AstroPlanner and Deep-Sky Planner shine when it comes to organizing sessions and analyzing detailed object data, particularly for faint and obscure targets. Meanwhile, Cartes du Ciel remains a trusted choice for creating precise star charts, and SkySafari Pro provides a convenient mobile-friendly solution for planning and telescope control in the field.

By using these tools to complement your imaging software, you’ll be equipped to make every session productive, whether you’re imaging from your backyard or under the pristine skies of a remote dark site.

Best Software for Processing Long-Exposure Astrophotography Images

Image processing is a critical part of astrophotography, transforming raw data into stunning visuals. The following software is designed for experienced astrophotographers who demand high-quality results and advanced control over calibration, stacking, and post-processing. These tools cater to the needs of those with technical expertise and high-end equipment, offering precise control over every stage of the image processing pipeline.

PixInsight

Platforms: Windows, macOS, Linux
Pricing: ~$260
Pitch: PixInsight is widely regarded as the premier tool for astrophotography image processing. It offers unmatched capabilities for data calibration, stacking, and advanced processing, including powerful tools for noise reduction, star removal, and gradient correction. With its modular design and scripting support, PixInsight provides a level of control and flexibility unparalleled by other software.
Pros: Industry-standard processing tools, excellent for advanced workflows, highly customizable, scripting support.
Cons: Expensive, steep learning curve for new users.
PixInsight https://pixinsight.com

Adobe Photoshop (with Astro Plugins)

Platforms: Windows, macOS
Pricing: $9.99/month (Creative Cloud Photography Plan)
Pitch: Adobe Photoshop remains a versatile option for astrophotography post-processing, especially when paired with astrophotography-specific plugins like Astro Panel or StarXTerminator. It excels in fine-tuning color, contrast, and detail, making it an essential tool for refining and polishing images. Its ubiquity and user-friendly design make it a staple for astrophotographers of all levels.
Pros: Widely used, intuitive for general editing, highly flexible with plugins.
Cons: Subscription-based pricing, not specialized for astrophotography out of the box.
Adobe https://adobe.com

AstroPixelProcessor (APP)

Platforms: Windows, macOS, Linux
Pricing: $72/year or ~$205 for a perpetual license
Pitch: AstroPixelProcessor is designed specifically for astrophotography, offering a streamlined workflow for image calibration, integration, and processing. It excels in handling complex tasks like mosaics and multi-channel processing, making it a favorite for advanced users who prioritize efficiency and high-quality results.
Pros: Excellent mosaic and multi-channel support, easy-to-use interface for astrophotography, strong calibration tools.
Cons: Less feature-rich for advanced post-processing compared to PixInsight.
AstroPixelProcessor https://astropixelprocessor.com

DeepSkyStacker (DSS)

Platforms: Windows
Pricing: Free
Pitch: DeepSkyStacker is a popular and user-friendly tool for stacking astrophotography images. It automates tasks like light, dark, flat, and bias frame integration, making it a valuable starting point for astrophotographers. While limited in post-processing capabilities, it provides clean, calibrated images ready for editing in more advanced tools.
Pros: Free, simple interface, efficient stacking process.
Cons: Limited to stacking and calibration; lacks advanced processing tools.
DeepSkyStacker http://deepskystacker.free.fr

Affinity Photo (with Astro Extensions)

Platforms: Windows, macOS, iPad
Pricing: ~$70 for a one-time license
Pitch: Affinity Photo offers many of Photoshop’s features without the subscription model, making it an attractive option for astrophotographers. Its recently introduced Astro Extension Pack adds astrophotography-specific tools, including stacking, star reduction, and gradient correction, making it a competitive choice for advanced processing.
Pros: One-time purchase, astrophotography-specific extensions, versatile editing tools.
Cons: Still maturing as an astrophotography-specific tool; less community support than Photoshop.
Serif https://affinity.serif.com

Siril

Platforms: Windows, macOS, Linux
Pricing: Free
Pitch: Siril is an open-source image processing tool focused on astrophotography. It provides robust tools for calibration, stacking, and initial post-processing. While it lacks the polish of PixInsight, it is a powerful option for astrophotographers seeking a free, community-supported alternative.
Pros: Free, powerful stacking and calibration, extensive tutorials and community resources.
Cons: Steeper learning curve compared to other free tools; less intuitive interface.
Siril https://siril.org

Recommendation: If you’re looking for the most powerful and comprehensive tool for processing astrophotography images, PixInsight is the gold standard. Its advanced capabilities for calibration, stacking, and post-processing provide astrophotographers with unmatched control over every stage of their workflow. For those who prefer a versatile option with a familiar interface, Adobe Photoshop, enhanced with astrophotography plugins, is an excellent choice for fine-tuning and polishing images.

If you prioritize streamlined workflows and complex tasks like mosaics, AstroPixelProcessor offers an efficient and user-friendly solution tailored specifically to astrophotography. Meanwhile, DeepSkyStacker is the ideal starting point for those seeking a free and straightforward tool for stacking and calibration, producing clean data ready for further processing.

Affinity Photo, with its Astro Extension Pack, combines the power of a general photo editor with astrophotography-specific tools, making it an appealing option for those who want advanced capabilities without a subscription. Finally, Siril delivers a robust open-source alternative for budget-conscious astrophotographers, offering powerful features and extensive community support.

Whatever your level of expertise, these tools provide the flexibility and precision needed to turn raw astrophotography data into stunning final results.

by Catie Pinochega