HD 224801

HD 224801
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 00m 43.6345s[1]
Declination +45° 15′ 12.007″[1]
Apparent magnitude (V) 6.32 – 6.42[2]
Characteristics
Spectral type A0IIspSiSrHg[3]
Apparent magnitude (B) 6.299[4]
Apparent magnitude (V) 6.347[4]
Apparent magnitude (G) 6.333[1]
Apparent magnitude (J) 6.407[5]
Apparent magnitude (H) 6.506[5]
Apparent magnitude (K) 6.511[5]
U−B color index -0.35[6]
B−V color index -0.0425[4]
Variable type Alpha² CVn[7]
Astrometry
Radial velocity (Rv)−1.00±2.2[8] km/s
Proper motion (μ) RA: +17.745[1] mas/yr
Dec.: +0.607[1] mas/yr
Parallax (π)5.5784 ± 0.0405 mas[1]
Distance585 ± 4 ly
(179 ± 1 pc)
Absolute magnitude (MV)0.0[9]
Details
Mass3.4[1] M☉
Radius2.8[1] R☉
Luminosity170[1] L☉
Surface gravity (log g)4.12[1] cgs
Temperature11,900[10] K
Metallicity [Fe/H]0.98[9] dex
Rotation3.74[10] days
Rotational velocity (v sin i)30[6] km/s
Age239[11] Myr
Other designations
CG Andromedae, BD+44° 4538, HD 224801, HIP 63, HR 9080, SAO 53568, PPM 42458, TYC 3246-2388-1.
Database references
SIMBADdata

HD 224801, also known as CG Andromedae, is an Alpha2 Canum Venaticorum variable star in the constellation Andromeda. Located approximately 188 parsecs (610 ly) away, the star varies between apparent magnitudes 6.32 and 6.42 over a period of approximately 3.74 days.

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