1.98
Apparent Mag177
Distance (ly)K3II-III
Spectral Type4,120
Temperature (K)Alphard is the brightest star in Hydra, the largest constellation. Its name means the solitary one because it sits in a relatively empty region of the sky.
Stellar Data
Apparent Magnitude1.98
Absolute Magnitude-1.69
Distance177 light-years
Spectral TypeK3II-III
Temperature4,120 K
Luminosity780 L☉
Radius50.5 R☉
Mass3.03 M☉
Right Ascension09h 27m 35.2s
Declination-08° 39′ 30.6″
ConstellationHydra
Notable Facts
- Alphard means the solitary one in Arabic
- It is the only bright star in a large dim region of the sky
- Hydra is the largest of the 88 modern constellations