User:RelentlessRecusant/Tau Capricorni System

The Tau Capricorni System, (Tau1 Capricorni System), otherwise known as the 13 Capricorni System by the UNSC Astrological Service, was a planetary star system eight hundred and forty light-years (two hundred and seventy two parsecs) from Earth, the constellation of Capricornus.

It was a singular star system, with a planetary system established around Tau1 Capricorni, a K3III-type Hertzsprung-Russel main sequence star, that is, a yellow-orange giant star of spectral type "K", and relatively luminous for its spectral classification. Tau1 Capricorni has a bolometric luminosity approximately one-half that of Sol, and an intrinsic temperature approximately two-thirds that of Sol.

The Tau Capricorni System had seven extrasolar planets, including Tau Capricorni A, a Chthonian planet that was formerly a gas giant, and Tau Capricorni B, a habitable terrestrial world colonized by the Covenant as the colony of "Absolution Court".