Astronomy Observing Log

Out under a dark sky you do not want a bright screen wrecking your night vision just to note what you saw. This log runs in a deep red night mode so you can record an observation without losing your dark adaptation.

For each session, rate the seeing and transparency from one to five and write down what you observed and the conditions. A built-in Messier checklist of all one hundred and ten objects tracks how far through the list you have worked, and your progress is there whenever you want to plan the next night out.

- Session log with seeing and transparency ratings
- Messier checklist of all 110 objects with progress
- Deep red mode to protect your night vision
- Share an observing session as CSV

Made for amateur astronomers working through the Messier catalog one clear night at a time.

Your log lives on the phone, offline, and needs no account.