StargazerLog: Constellations
Night sky map, moon & planets
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
StargazerLog tells you what's happening in the sky above you tonight — real stars, real constellations, real math. Computed on your device from genuine astronomical catalogs, accurate anywhere on Earth.
WHAT IT DOES
• Tonight's constellations: which of the 88 constellations are up right now, which direction to face, and how high to look — built on a catalog of the brightest real stars (Sirius, Vega, Orion's Belt and more).
• Constellation finder: tap any constellation for its star chart, brightest stars, and how to spot it.
• Stargazing score: a 0–100 rating of tonight's sky conditions — moonlight, darkness windows — so you know if it's worth heading out.
• Meteor showers & sky events: Perseids, Geminids and every major annual shower with real peak dates, plus full moons — see what's coming in the next 30 days.
• Moon phase now: current phase, illumination, and moon age at a glance.
• Planets tonight: which of Mercury, Venus, Mars, Jupiter and Saturn clear the horizon after dark — and where to look.
• Nightly reminder: an optional "Tonight's Sky" notification with what's visible after dark.
BUILT ON REAL DATA
Star positions come from the Yale Bright Star Catalogue, constellations from the official IAU 88, meteor shower dates from the International Meteor Organization — all computed with deterministic astronomy on your device. No accounts, no guessing, no made-up data.
SET YOUR LOCATION
Pick a city or enter your exact latitude and longitude, and the whole sky is recomputed for where you actually are.
STARGAZERLOG PLUS
Core features are free. StargazerLog Plus unlocks every constellation tonight, search, and the 7-Day Sky Ahead — a week of nightly moon phases, the best planets to spot each night, and the darkest sky for stargazing. Available as an auto-renewing subscription, or pay once with the Lifetime unlock. Clearly priced, cancel anytime.
Subscription: auto-renews unless canceled ≥24h before the period ends; payment charged to your Apple ID at confirmation; manage/cancel in App Store settings. Lifetime is a one-time purchase — no subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://stargazerlog.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Never miss a clear night — reminders for meteor showers and the planets worth spotting tonight, plus a live countdown to the Aug 12 total eclipse.
The developer, Tony AI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BIGAI MEDIA JOINT STOCK COMPANY
- Size
- 55.6 MB
- Category
- Reference
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- StargazerLog Plus Monthly $2.99
- StargazerLog Plus Annual $29.99
- Copyright
- © 2026 BIGAI MEDIA JOINT STOCK COMPANY