HD 225218

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HD 225218
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 04m 36.587s[1]
Declination +42° 05′ 33.11″[1]
Apparent magnitude (V) 6.133
Characteristics
Spectral type B9III
U−B color index 0.14
B−V color index 0.15
Astrometry
Radial velocity (Rv) -8 km/s
Proper motion (μ) RA: -11.35 ± 0.42[1] mas/yr
Dec.: -12.64 ± 0.36[1] mas/yr
Parallax (π) 2.59 ± 0.56[1] mas
Distance approx. 1,300 ly
(approx. 390 pc)
Absolute magnitude (MV) 6.272
Details
Mass 18 M
Radius R
Luminosity 20.000 L
Temperature 10.000–30.000 K
Other designations
HIP 365, SAO 36037, HR 9105, NSV 15012, BD+41 4933, WDS J00046+4206.
Database references
SIMBAD data
Database references
SIMBAD data

HD 225218 or (ADS 30 A) is a double star system.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry