β Trianguli


β Trianguli is the brightest star in the constellation Triangulum with an apparent magnitude of 3.00 mag. It is almost 127 light-years (ly) away.

The star is a spectroscopic double star. The companion orbits the main star with an orbital period of 31.8 days at a distance of only 0.3 AU.

β Trianguli
Constellation Triangulum
Right ascension 02h 09m 32.63s
Declination +34° 59′ 14.3″
Apparent magnitude 3.00 mag
Distance (126.8 ± 1.7) ly
Bayer designation β Trianguli
Bright Star Catalogue HR 622
Hipparcos Catalogue HIP 10064
SAO Catalogue SAO 55306
Position of β Trianguli in the constellation Triangulum. Chart: International Astronomical Union in collaboration with the magazine Sky & Telescope