KK Andromedae

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KK Andromedae
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 01h 34m 16.607s[1]
Declination +37° 14′ 13.72″[1]
Apparent magnitude (V) 5.91
Characteristics
Spectral type B9 IV
U−B color index -0.3
B−V color index -0.07
Variable type Alpha CVn
Astrometry
Radial velocity (Rv) -4 km/s
Proper motion (μ) RA: 13.58 ± 0.35[1] mas/yr
Dec.: -21.90 ± 0.22[1] mas/yr
Parallax (π) 6.97 ± 0.32[1] mas
Distance 470 ± 20 ly
(143 ± 7 pc)
Absolute magnitude (MV) +0.35[2]
Details
Mass 2.85 ± 0.15[2] M
Radius 2.7 ± 0.4[2] R
Luminosity 91[2] L
Surface gravity (log g) 4.19 ± 0.13[2] cgs
Temperature 10,940[2] K
Rotation 0.67 days[2]
Other designations
BD+36 277, HD 9531, HIP 7321, HR 446, SAO 54788.
Database references
SIMBAD data

KK Andromedae is a variable star.

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
  2. ^ a b c d e f g North, P. (June 1998), "Do SI stars undergo any rotational braking?", Astronomy and Astrophysics 334: 181–187, arXiv:astro-ph/9802286, Bibcode:1998A&A...334..181N 

External links[edit]

Coordinates: Sky map 01h 34m 16.6065s, +37° 14′ 13.727″