49 Cassiopeiae

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49 Cassiopeiae A / 49 Cassiopeiae B[1][2]
Observation data
Epoch J2000.0
Constellation
(pronunciation)		 Cassiopeia
Right ascension 2h 5m 31.5481s / 2h 5m 30.0s
Declination +76° 6' 54.218" / +76° 6' 54"
Apparent magnitude (V) 5.225 / 12.3
Characteristics
Spectral type G8III / ?
Astrometry
Radial velocity (Rv) 0.0 / ? km/s
Proper motion (μ) RA: -12.19 / ? mas/yr
Dec.: -20.49 / ? mas/yr
Parallax (π) 7.65 ± 0.52 mas
Distance 430 ± 30 ly
(131 ± 9 pc)
Other designations
49 Cassiopeiae, HR 592, BD+75°86, HD 12339, SAO 4565, HIP 9763, GC 2475, GSC 04495-01881, CCDM J02056+7607

49 Cassiopeiae is a binary star system in the constellation Cassiopeia, approximately 430 light years away from Earth. The main star, 5th magnitude 49 Cassiopeiae A, is a yellow giant star of the spectral type G8III. It is in the same temperature range as our Sun, 5,000 to 6,000 kelvins. It is many times larger and more luminous. Its companion, 12th magnitude 49 Cassiopeiae B, is much fainter and of an unknown spectral type.

[edit] References

  1. ^ Simbad Query Result. Simbad. Retrieved on October 31, 2007.
  2. ^ Simbad Query Result. Simbad. Retrieved on October 31, 2007.