4.75
Apparent Mag7,800
Distance (ly)G0Ia
Spectral Type6,000
Temperature (K)V509 Cassiopeiae is a yellow supergiant and semi-regular variable in Cassiopeia.
Stellar Data
Apparent Magnitude4.75
Absolute Magnitude-8.5
Distance7,800 light-years
Spectral TypeG0Ia
Temperature6,000 K
Luminosity200,000 L☉
Radius400 R☉
Mass25 M☉
Right Ascension23h 00m 05.1s
Declination+57° 02′ 46.5″
ConstellationCassiopeia
Notable Facts
- V509 Cassiopeiae is a luminous yellow supergiant
- It is a semi-regular variable
- The star is about 200,000 times the Sun's luminosity