Observation data Epoch J2000 Equinox J2000 | |
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Constellation | Andromeda |
Right ascension | 01h08m 00.85266s[1] |
Declination | +43° 56′ 31.5254″[1] |
Apparent magnitude (V) | 5.04[2] |
Characteristics | |
Spectral type | A2IIIvs[3] (kA2hA6mA6[4]) |
U−B color index | +0.14[2] |
B−V color index | +0.11[2] |
Astrometry | |
Radial velocity (Rv) | +9.5±0.7[5] km/s |
Proper motion (μ) | RA: +159.581±0.361[1] mas/yr Dec.: −60.487±0.117[1] mas/yr |
Parallax (π) | 16.4320 ± 0.1767 mas[1] |
Distance | 198 ± 2 ly (60.9 ± 0.7 pc) |
Absolute magnitude (MV) | 1.19[6] |
Details | |
Mass | 2.27[7] M☉ |
Luminosity | 28.53[6] L☉ |
Surface gravity (log g) | 4.04[2] cgs |
Temperature | 8,511[2] K |
Rotational velocity (v sin i) | 84[8] km/s |
Age | 450[7] Myr |
Other designations | |
41 And, BD+43° 234, HD 6658, HIP 5317, HR 324, SAO 36950, PPM 43666[9] | |
Database references | |
SIMBAD | data |
41 Andromedae is a single[10] star in the northern constellationofAndromeda. 41 Andromedae is the Flamsteed designation. It is bright enough to be faintly visible to the naked eye, having an apparent visual magnitude of 5.04.[2] Based upon an annual parallax shiftof16.4 mas,[1] it is located 198 light years away. The star is moving further from the Earth with a heliocentric radial velocity of +10 km/s[5] and it has a relatively high rate of proper motion, traversing the celestial sphere at the rate of 0.171″ per year.[11]
The stellar classification for this star is A2IIIvs,[3] matching an A-type giant star with narrow (sharp) absorption lines. Abt and Levy (1985) classed it as a kA2hA6mA6[4] star, which indicates the spectrum has the calcium K line of an A2 star, the hydrogen lines of an A6 star, and the metal lines of an A6 star. It is around 450[7] million years old and is spinning with a projected rotational velocity of 84 km/s.[8] The star has 2.27[7] times the mass of the Sun and is radiating 29[6] times the Sun's luminosity from its photosphere at an effective temperature of 8,511 K.[2]
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