The Phaeton brings 18th-century astronomy to the iPad through a modern interpretation of three astronomical instruments of antiquity: the Tellurion, the Grand Orrery and the Astrolabe.

The Tellurion depicts various phenomena of day, night and the seasons due to the rotation of the earth on its axis, the tilt of its axis and its revolution around the sun. It also displays the moon's position in its orbit, its apparent phase and can be used to predict eclipses.

The Grand Orrery shows the positions of the major planets and the position of the sun in the zodiac.

The Astrolabe simultaneously provides the local apparent solar time, local sidereal time, the sun's altitude above the horizon, its azimuthal direction, its declination from the equator and its zodiacal position. (Currently, altitude and azimuth for northern hemisphere users only)

The app support web site provides contact information for inquiries and comments.