SatVis vs StarHi

Satvis is a free, open-source satellite tracker. It draws more than 12,000 satellites on a 3D globe in real time, across fourteen catalog groups: Starlink, GPS and the other navigation constellations, weather and Earth-observation satellites, the ISS and other crewed stations. Set where you are and it works out when each one passes overhead, and your iPhone reminds you before the pass starts. Point your iPhone at the sky to find the ISS, Starlink and 12,000 more satellites overhead. WHAT IT DOES • Follow more than 12,000 satellites live on a 3D globe, with positions computed on your device • Show points, labels, orbits, ground tracks, sensor cones and 3D models, coloured by orbit class • Turn any of the 14 catalog groups on or off, or search for a single satellite • Track a satellite and the camera follows it along its orbit • Set a ground station, list its upcoming passes, and get a notification before one starts • Find a satellite overhead in the sky view, aimed by moving your phone • Choose 3D, 2D or Columbus view, with base maps, star fields, terrain and 3D buildings • Share the exact view you are looking at as a link • Keep using it offline from cached satellite data WHERE THE DATA COMES FROM Orbital elements come from CelesTrak, refreshed every six hours, and are propagated on your device with SGP4. FREE AND OPEN SOURCE No account, no ads, no in-app purchases. Developed in the open at github.com/Flowm/satvis under the MIT licence.

StarHi is a practical astronomy app that helps you to explore the starry sky. You can mount your phone on a telescope and use the app to help the telescope accurately locate celestial bodies with some simple settings. The app utilizes your phone's time, location, and sensor information to determine the positions of the moon, planets, stars, deep space objects, and constellations in the night sky. Additionally, it provides basic information about various celestial bodies. Main Features: 1. Ensures that the starry sky displayed on the mobile phone matches what is seen through the telescope. 2. Displays the direction in which the telescope is pointing. 3. Simulates the visual fields observed by telescopes of different magnifications and structures. 4. Helps novice astronomers identify and locate celestial objects in the vast night sky. 5. Simulates the starry sky in real-time or at a time and place set by the user. StarHi is a new astronomical application. Compared to other star-finding software, StarHi uses a new algorithm that makes the starry sky displayed on the phone screen consistent with what is seen through the telescope with simple settings. Users can use the app's celestial body information and screen icons to align the telescope with the celestial body they want to observe. Download StarHi now and start your celestial adventure.