Deep Sky Scanner
Chris Eddy Education iPhoneiPadiPod touch
Deep Sky Scanner is a free Education app for iPhone and iPad by Chris Eddy. Requires iOS 15.0. Updated October 10, 2026.
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Oct 10
- 2026 · v1.5
Screenshots
About Deep Sky Scanner
Point your phone at the sky and know instantly what’s worth imaging. Deep Sky Scanner turns your device into an aiming tool for the Seestar S50, scanning your field of view and ranking every galaxy, cluster, and nebula by altitude, brightness, and how well it’ll actually fit your frame. No more guessing what’s up, no star-hopping, no wasted setup time on a target that’s too big or too faint for tonight’s sky. FEATURES • Live sky scan — see every object in view as you move your phone, tracked with full 3D orientation for steady accuracy even near the zenith • Ranked target lists — sorted by altitude trajectory, brightness, or best overall fit for your Seestar S50 • Frame-fit scoring — know before you start whether an object will actually fit the frame, not spill past the edges • Ascending/descending badges — see whether a target is climbing toward better altitude or already past its peak • Planning mode — drag the time slider to preview the sky at any hour and plan your session in advance • Per-object imaging notes — integration-time guidance by magnitude, edge-on galaxy detection, and nearby-companion flags • Full OpenNGC catalog with offline fallback — works even without a signal • Additional catalogs are available and can be optionally selected on the settings page • Supports the Seestar family of telescopes Built by a Seestar owner, for Seestar owners.
What’s new
Version 1.5 · Updated October 10, 2026
Added several sources for images. Added default descriptions. Added link to Astrobin for research.
App privacy
The developer, Chris Eddy, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Deep Sky Scanner
Looking for apps like Deep Sky Scanner? Here are 6 similar apps on the App Store. The highest rated is The Lunartic (5.0/5), and 5 of the 6 are free to download.
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Planet Pointer: Star Finder
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Deep Sky Object Finder
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Beautiful Planets: Sky Finder
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My Sky: Deep Sky Star Map
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The Lunartic
5.0
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Night Sky Planner
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Deep Sky Scanner | – | Free | October 10, 2026 | |
| Planet Pointer: Star Finder | – | Free | Oct 17, 2026 | Compare |
| Deep Sky Object Finder | – | Free | Sep 17, 2026 | Compare |
| Beautiful Planets: Sky Finder | – | Free | Sep 11, 2026 | Compare |
| My Sky: Deep Sky Star Map | – | Free | Oct 3, 2026 | Compare |
| The Lunartic | 5.0 / 5 (2) | 5.99 USD | Oct 1, 2026 | Compare |
| Night Sky Planner | 5.0 / 5 (1) | Free | Aug 10, 2026 | Compare |
Compare Deep Sky Scanner with the top alternatives: ratings, updates, ASO score and keyword gaps →