Plan your deep-sky sessions: light pollution, catalogs, FOV, weather & offline
10+ downloads
About SSI Astronomy Planner
SSI Astronomy Planner is a photography app developed by StellarSkyImager.
Download Statistics
SSI Astronomy Planner has been downloaded 23 times. In the last 30 days, the app was downloaded 1 times.
User Ratings
The app has no ratings yet.
App Information
SSI Astronomy Planner costs $9.99 to download. The APK download size is 20.50 MB. The latest version available is 2.0.8. The last update was on July 2, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play April 2026.
Description
SSI Planner is the must-have tool designed by and for passionate deep-sky astrophotographers.
Simplify your imaging session planning with a powerful set of tools in a modern, smooth interface:
Light pollution maps and image packs (low-res mode available to avoid heavy downloads) for your targets in OFFLINE MODE — download them in the app to use the planner on the go, without any network connection.
******************* • OFFLINE MODE: Search for targets even without a network connection. Set GPS coordinates for your location (city name only works in online mode). Target images are displayed even offline. *******************
• SESSION PLANNER: Visualize optimal targets and their altitude curves, meridian transit times and Moon impact — tailored to your skill level, location (Bortle scale) and imaging setup. • FULL CATALOG: Explore thousands of objects (Messier, NGC, IC, Sharpless, Arp, Abell, Hash and more) with smart search and filters by type (galaxies, nebulae, clusters). • SKY FRAMING: Easily locate your target within its constellation in the sky. • FOV CALCULATOR: Simulate your field of view based on your sensor and focal length to perfectly frame your targets. • ASTRONOMICAL WEATHER: Check cloud cover and seeing forecasts for your GPS coordinates. • EPHEMERIS: Track Moon phases and total darkness windows (astronomical night). • EXPORT: PNG, PDF (online only), N.I.N.A. (Sequence & Target), ASIAIR (Plan), EKOS (Scheduler & Sequence) and APT (XML Plan). • NEWS: Latest astronomy news. • GUIDES: Handy references to understand astrophotography terminology. • Astrophotographer galleries via Astrobin.
* Multilingual: French, English, German, Spanish, Italian and Chinese. * Built-in night vision mode.
Best experienced on mobile.
SSI Planner is ad-free and fully respects your privacy. Prepare your setup, launch your sequence and let the magic of the cosmos unfold!
The app is regularly updated — we welcome your suggestions and bug reports.
Recent changes: New: imaging now possible even without astronomical darkness! At high latitudes in summer (Sun never below -18°), the planner now falls back to nautical night (-12°) instead of showing no targets. A warning lets you know the sky stays brighter — narrowband filters (Ha/OIII/SII) recommended.
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