PlanetFun

Features PlanetFun

Planet Fun is a 4D simulation of the solar system (3D+Time).
It shows the Sun, Moon, 9 planets and the star background.
The app was developed with Delphi, and runs on multiple platforms.
App open source code (Delphi FMX) is available at:https://github.com/omarreis/vsop2013Planet positions are calculated using VSOP2013 and VSOP87.
Moon positions use ELP2000.
Star background contains 42455 stars of Hipparcos Input Catalogue, with optional constellation lines and names.Program features:* Solar system animation with configurable speed* Choose camera target (Sun, planets, Moon)* A lighthouse marks the user position on Earth (uses GPS)* Set date/time between years 1500 and 3000* Configurable camera distance-to-target* Touch gestures: one finger pan, two finger zoom and two finger rotation* Show planet orbits.
Each orbit is represented by 52 dots ( For the Earth, it is 1 dot per week)* Star background, with constellation patterns.* Actual 3D spheres for the 150 brightest stars.* Celestial sphere background image, with optional names and constellation lines.* Solar system heliocentric axis (x and z)* Activate phone sensor for augmented reality mode.
The scene moves to match the real world.
Use the [phone] button for that.Source code and documentation covers many aspects of astronomical algorithms.video: https://www.tiktok.com/@omar_reis/video/6859411602031119622