Astronomical Information

Arev and Vordi
Tyr orbits a binary star system that has many names on Tyr, but is most commonly called Arev and Vordi. The system consists of a G-type main-sequence star (Arev) and an L-type brown dwarf (Vordi). The two stars are often seen together in the sky but during certain alignments of the solar system only one star can be seen. Periods where Vordi appears alone in the sky are known as "Red Days."

Etymology
Arev is the god of the sun and Vordi is his son in the myths of Eorlon. In many regions the suns are not referred to as father and son, but as the two eyes of Arev or another regional sun god.

Appearance in the Sky
Arev appears somewhat yellow-orange when viewed at sunrise and sunset, but is ultimately too bright to observe with the naked eye. Vordi is a deep red-magenta, which is much easier to observe with the naked eye, but still dangerous to stare at as prolonged viewing can cause "sun blindness."

Cohar and Dali
Tyr is orbited by 3 moons: Cohar and Dali, two moons viewable by the naked eye, and a dust cloud which is rarely observable from the planet's surface.

Etymology
Cohar and Dali are the wives of Arev.

Appearance in the Sky
Cohar is large and pocked with craters. Dali is much smaller and shines brightly.