Asterfolio: Night Notebook

About Asterfolio: Night Notebook

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.