NightSkyLog: Stargazing
Log every observing session with sky conditions, bag Messier objects, planets, and double stars on built-in life lists, and export a PDF report of every night.
Download on theApp StoreNightSkyLog is the observing journal that lives at the eyepiece: every session with its site and sky, every object you bag, the gear you used, and the life lists that prove it happened.
Start a session and grade the night the way astronomers actually do: seeing from boiling to excellent, transparency from murky to crystal, the Bortle class of your site, and the temperature. NightSkyLog computes the moon phase and illumination for the night on its own, and files sessions by observing night, so a 1 AM entry still belongs to the evening it started.
The whole hunt ships in the box. All 110 Messier objects with their types, constellations, magnitudes, best months, and one-line field notes. The Moon and seven planets with what to look for on each. And 28 classic double stars, Albireo to Izar, with separations and colors. Log an object during a session and the matching checklist ticks itself off, with the date you first bagged it.
The Tonight screen reads your log and the calendar: it suggests bright objects well placed this month that are still missing from your life list, shows tonight's moon, and charts your observing year: objects per month, your best night, and the kinds of objects you hunt most.
Every object log carries the view through the eyepiece: which eyepiece, the magnification, a rating out of five, notes, and a sketch or photo straight from your library. Gear gets its own shelf: telescopes, eyepieces, binoculars, Barlows, and filters, with notes and how many nights each has worked. Enter focal lengths once and NightSkyLog computes magnification, exit pupil, and true field for every telescope and eyepiece pair, plus the useful ceiling for your aperture.
What You Get
- Session log with seeing, transparency, Bortle class, temperature, and computed moon phase
- Built-in catalog: 110 Messier objects, the Moon and 7 planets, 28 classic double stars
- Life lists that check themselves off as you log, with first-bagged dates
- Tonight's targets: seasonal suggestions drawn from your own gaps
- Object logs with eyepiece, magnification, rating, notes, and sketch or photo
- Gear shelf with magnification, exit pupil, and true field math
- Session report PDF export
- Sky quality reference: Bortle, seeing, and transparency scales in plain words
- Syncs across iPhone and iPad with iCloud
Free and Lifetime
Free covers a real start: 5 observing sessions, full object logging with sketches, the complete Messier checklist, and your gear shelf. Lifetime is a single purchase that unlocks unlimited sessions, the planet and double star life lists, and the session report PDF, forever. No subscription.
Private by Design
No account of ours and no tracking. Your log lives on your device and in your private iCloud, which we cannot read. Settings has a Delete All My Data control that erases everything from your device and your iCloud.
Pricing
NightSkyLog Pro is a one time Lifetime purchase, not a subscription. The current price is shown in the app and on this page before you buy. Payment is charged to your Apple Account at confirmation of purchase. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
More in this category
NightSkyLog: Stargazing does one job well, works offline, keeps your data on your device, and syncs through your private iCloud. There is no account to create.
Who it is for
NightSkyLog: Stargazing is for anyone who wants a dependable way to handle this without a spreadsheet or a complicated setup. It sits in the Education category on the App Store.
Private by design
No ads, no trackers, no data harvesting. Your entries stay on your device and sync only through your own private iCloud, so they move between your devices without passing through our servers. There is a Delete All My Data control, so you stay in charge.
Common questions
What is NightSkyLog: Stargazing?
Log every observing session with sky conditions, bag Messier objects, planets, and double stars on built-in life lists, and export a PDF report of every night.
Is NightSkyLog: Stargazing on the App Store?
Yes. It is available now on the App Store.
Does NightSkyLog: Stargazing work offline?
Yes. Everything runs on your device, so it works with no signal.
Does NightSkyLog: Stargazing sync between devices?
Yes. Your data syncs through your own private iCloud. We never see it.
Does NightSkyLog: Stargazing work on iPad?
Yes. It is a universal app and runs natively on iPhone and iPad.
Does NightSkyLog: Stargazing include in-app purchases?
Some advanced features require an in-app purchase. The App Store shows the current choices, prices, and terms for your storefront before you confirm anything.
Read the NightSkyLog guide · Contact support · Privacy
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