# Deep Sky Scanner — Know what's worth the exposure

> Know what's worth the exposure (iPhone/iPad app by Chris Eddy.)

- Source: https://appshunter.io/ios/app/deep-sky-scanner/id6809615071 (this page in markdown: same URL + `.md`)
- Developer: [Chris Eddy](https://appshunter.io/developer/6809615073)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 2 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-09-19
- User reviews in markdown: https://appshunter.io/ios/app/deep-sky-scanner/id6809615071/reviews.md

## What is 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
Built by a Seestar S50 owner, for Seestar S50 owners.


## Version history (last 3 releases)

### 1.2.0 — 2026-09-17

Minor bug fix in link to tips sheet. 
Added processing tips for dark nebula 
Added the ability to add custom objects along with the cataloged objects.

### 1.1.0 — 2026-09-15

Minor fix to compass settings. Added settings page to select telescope and set defaults for plan start time, scanner field of view, and magnitude filter.

### 1.0 — 2026-09-14

No release notes.

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-19.*