Zeta Pegasi

from Wikipedia, the free encyclopedia
Star
ζ Pegasi
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Pegasus
Right ascension 22 h 41 m 27.7 s
declination + 10 ° 49 ′ 53 ″
Apparent brightness 3.41 (3.40 to 3.41) mag
Typing
B − V color index (−0.08) 
U − B color index (−0.23) 
R − I index (−0.07) 
Spectral class B8.5 V
Variable star type SPB 
Astrometry
Radial velocity (6.1 ± 0.3) km / s
parallax (14.28 ± 0.36)  mas
distance (230)  ly
(70)  pc
Proper movement 
Rec. Share: (78.28 ± 0.78)  mas / a
Dec. portion: (−10.64 ± 0.73)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name ζ Pegasi
Flamsteed name 42 pegasi
Bonn survey BD + 10 ° 4797
Bright Star Catalog HR 8634 [1]
Henry Draper Catalog HD 214923 [2]
Hipparcos catalog HIP 112029 [3]
SAO catalog SAO 108103 [4]
Tycho catalog TYC 1155-2187-1 [5]
2MASS catalog 2MASS J22412773 + 1049526 [6]
Other names Homam, FK5 855

ζ Pegasi ( Zeta Pegasi , short: ζ Peg) is a star in the constellation Pegasus . It belongs to the spectral class B8 and has an apparent magnitude of 3.41 mag. Zeta Pegasi is approximately 230 light years from Earth. The star bears the historical proper name Homam (from Arabic سعد الهمام, DMG saʿd al-humām  'luck (star) of the brave').

Web links

Individual evidence

  1. ↑ a b c d e f g 42 Peg. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on October 31, 2018 .
  2. ↑ a b c zet peg. In: VSX. AAVSO, accessed October 31, 2018 .