Apphemeride Precise Astronomy vs Astar Star Map Night Sky Guide

Your sky. Your perspective. Explore the Sun, Moon, planets and more than 2.5 million stars with Apphemeride. Plan observations, follow celestial events and understand the sky through detailed data, interactive maps and a 3D solar system. BUILD YOUR OWN DASHBOARDS Bring together personal lists, your favorite objects and the details that matter to you. Arrange cards with the new layout system and choose the values, units and formats you want to see. TRAVEL THROUGH THE SOLAR SYSTEM Explore our solar system in 3D. Move between celestial objects and connect their positions in space with what you see in the sky. MAP YOUR NEXT OBSERVATION Explore the sky with constellations and coordinate grids. Use observation and Earth visibility maps to study where an object is above the horizon. Choose which astronomical guides and values appear in your views. GET TO KNOW EACH OBJECT The redesigned object view brings visual exploration and detailed parameters together. Depending on the object, examine rise, transit and set times, altitude, azimuth, coordinates, phase, illumination, brightness, angular size and distance. Search the expanded star catalog by TYC, HIP or HD identifier. FOLLOW EVENTS AND ECLIPSES Study solar and lunar eclipse visibility with maps and simulations. Find upcoming celestial events for a selected location, open them on the sky map, and follow objects in personal watchlists. Set alerts for the astronomical values you want to track. UNDERSTAND THE LOCAL HORIZON Use the Horizon Tracker to compare the paths of the Sun, Moon and planets over a day, month or year. Explore different times and locations to plan observations, travel or astrophotography. AT HOME IN 17 LANGUAGES English, German, Spanish, French, Portuguese, Italian, Arabic, Hungarian, Russian, Polish, Turkish, Hindi, Simplified Chinese, Japanese, Korean, Vietnamese and Indonesian. Core astronomical calculations and bundled catalogs work offline. Online features such as address search, map imagery and current sunspot data require an internet connection. Explore the Sun and Moon for free. Try all features free for three days, then unlock the full version permanently with a one-time in-app purchase. Existing paid customers keep their permanent access.

Astar turns the real night sky above you into a place for memory. Point your phone at the sky, or explore freely with a swipe, and see a live 3D star map of roughly 1 million real stars plus the Moon and planets, rendered from real astronomical data and tilted to match your exact location. Tap any star to read the notes left there, or leave your own. Some notes are public and appear in the Explore feed; others stay private in your personal Journal. WHAT YOU CAN DO - See the real night sky in 3D, oriented to where you're standing - Find constellations overhead, drawn with constellation lines and 3D figure art - Tap a star to leave a short note, text only - Browse Explore, a public feed of notes other stargazers have left under real stars - Like and favorite notes that resonate with you - Keep a private Journal of your own notes and favorites, with a private star map just for you - Give an unclaimed star a name: a symbolic, community-given dedication shown to everyone in Astar's sky, a personal way to mark an anniversary, a memorial, or a birthday. This name lives within Astar's own community catalog only. It is not an official astronomical designation and is not recognized by the International Astronomical Union or any scientific body. A plain language disclaimer is shown before every naming purchase. - Aim your phone at the sky in Capture mode to line up on the nearest bright star FREE TO USE Astar's core experience is free, with no time limit: view the live sky, browse Explore and your Journal, and post one public note and one private note every day. ASTAR PREMIUM (optional, auto-renewing subscription) Astar Premium removes the daily note limit, unlocks your full Journal history with no 30-day window, and gives 25% off every Star Naming package. - Monthly: $7.99 / month - Yearly: $49.99 / year Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. Manage or cancel any time in your Apple ID account settings after purchase. STAR NAMING & NOTE EXTENSIONS Naming a star, and extending how long a public note stays visible, are optional one-time purchases open to every user, free or Premium - no subscription required. Pricing and details are shown before you buy. SUPPORT & LEGAL Privacy Policy: https://mottods.com/astar/privacy-policy.html Terms of Use: https://mottods.com/astar/terms-of-service.html Questions: support@mottods.com