# Asterfolio: Night Notebook — Sessions, Eyepieces & Sketches

> Sessions, Eyepieces & Sketches (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/asterfolio-night-notebook/id6792172490 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Reference, Lifestyle
- Price: Free (on sale, was $2.99)
- Age rating: 4+
- Requires: iOS 17.0 · 130 MB
- Released: 2026-07-28
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/asterfolio-night-notebook/id6792172490/reviews.md

## What is Asterfolio?

Asterfolio is a red-light-first field notebook for visual astronomers and telescope owners.

Preserve what the eyepiece actually showed, under the sky conditions and optical setup that made it visible.

KEY FEATURES
- Red-light session queue and observation timeline
- Magnification, exit pupil, true field, and resolution math
- Telescope, eyepiece, filter, and observing-site library
- Sketch and image attachments with printable session reports
- Optional local photos through Apple's Photos picker
- Local PDF project brief
- 175 original offline reference plates
- No account, ads, analytics, tracking, subscription, or network requirement

Asterfolio is an observing notebook and optical calculator. It does not predict safe weather, navigation, solar-viewing safety, object visibility, or equipment suitability. Never view the Sun without purpose-built certified solar equipment and current expert guidance.


## Version history (last 1 release)

### 1.0 — 2026-07-28

No release notes.

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

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*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 2026-09-04.*