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1 Camelopardalis
Double star system in the constellation Camelopardalis / From Wikipedia, the free encyclopedia
1 Camelopardalis (1 Cam) is a double star system in the constellation Camelopardalis. Its combined apparent magnitude is 5.56 and it is approximately 800 parsecs (2,600 ly) away.
The 1 Camelopardalis system is part of the Camelopardalis OB1 stellar association, which is 820 pc away.[12] 1 Camelopardalis A is a hot massive star which has evolved away from the main sequence to become a giant. 1 Camelopardalis B is 10" away and is probably an early B class subgiant.
There is an 11th magnitude star 150" away.[13] It has been considered to be a member of a triple system,[12] but Gaia observations show it to be an unrelated background object.[14]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/3/38/DLCamLightCurve.png/640px-DLCamLightCurve.png)
1 Camelopardalis A is a variable star with a small amplitude. It has a likely period of 0.22132 days and is thought to be a β Cephei variable or slowly pulsating B-type star.[16] Hipparcos photometry shows an amplitude of 0.035 magnitudes.[17] It has a rotational velocity of 275 km/s, one of the highest known.[10]