HD 222502

From Wikipedia, the free encyclopedia

HD 222501[1] / HD 222502[2]
Observation data
Epoch J2000.0
Constellation
(pronunciation)		 Pisces
Right ascension 23h 41m 10.7452s/23h 41m 11.4711s
Declination +6° 15' 55.162"/+6° 15' 45.974"
Apparent magnitude (V) 8.56/7.73
Characteristics
Spectral type F8
Astrometry
Proper motion (μ) RA: 81.20/79.70 mas/yr
Dec.: -9.90/-6.90 mas/yr
Other designations
BD+5°5208/+5°5209, HD 222501/222502, SAO 128326/128327, GC 32900, GSC 00592-01604/00592-01602

HD 222501 and HD 222502 are two stars in a binary star system, separated from each other by about 10 arcseconds. They both have a spectral type of F8, meaning they have a surface temperature of 6,000 to 7,500 Kelvin, slightly hotter than the Sun. The brighter star, HD 222502, has an apparent magnitude of 7.73. Its dimmer companion has an apparent magnitude of 8.56.[1][2]

[edit] References

  1. ^ a b Simbad Query Result. Simbad. Retrieved on October 12, 2007.
  2. ^ a b Simbad Query Result. Simbad. Retrieved on October 12, 2007.
Sirius  This main sequence star-related article is a stub. You can help Wikipedia by expanding it.