Planet Fun

PlanetFun is a 4D solar system simulation (3D + time)

Sun, planets, Moon and star positions are calculated using

various astronomical methods.

App source code (Delphi Firemonkey) is available at:

https://github.com/omarreis/vsop2013

PlanetFun features:

* Solar system animation with configurable speed

* Set any local date and time

* Choose camera target (Sun, planets, etc)

* Configurable camera distance-to-target

* Touch gestures: one finger pan, two finger zoom, two finger rotation

* show planet orbits. Each orbit is represented by 52 dots (for Earth it is one dot per week)

* Heliocentric axis (x and z)

* VSOP2013 and VSOP87 planet position calculations

* Moon positions calculations ELP2000

* Star background image with 42455 stars of the Hipparcos Input Catalogue

* Star and constellation lines and names ( a celestial sphere image )

* Constellation drawings ( 31 constellations )

* actual 3D spheres for the 150 brightest stars

* Lighthouse on Earth on your GPS position

* phone in the scene is positioned according to phone sensors (Azimuth,Elevation,Roll)

* click the phone button to enter augmented reality mode.

* Almanac module allows exploring the ephemeris calculators (stars, planets, Sun, Moon, Earth)

controls:

* camera distance and angle of view.

* planet scales

* local time, time animation speed

* control visibility of various interface elements

* app uses sensors compass, gyro and GPS - requires permission

This app collects no user data.