Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 01h 27m 26.6729s [2] |
Declination | +41° 06′ 04.178″ [2] |
Apparent magnitude (V) | 6.46 [3] |
Characteristics | |
Spectral type | Am(kA5/hF1/mF2) [4] |
U−B color index | 0.03 [3] |
B−V color index | 0.27 [3] |
V−R color index | 0.26 [3] |
R−I color index | 0.16 [3] |
Variable type | γ Doradus and δ Scuti [5] |
Astrometry | |
Radial velocity (Rv) | 0.8±0.3 [1] km/s |
Proper motion (μ) |
RA: 9.611±0.030
[2]
mas/
yr Dec.: 25.910±0.024 [2] mas/ yr |
Parallax (π) | 18.7624 ± 0.0298 mas [2] |
Distance | 173.8 ± 0.3
ly (53.30 ± 0.08 pc) |
Absolute magnitude (MV) | +2.68 [1] |
Details | |
Mass | 1.55±0.1 [1] M☉ |
Radius | 1.7±0.1 [1] R☉ |
Luminosity | 6.5±0.6 [1] L☉ |
Surface gravity (log g) | 4.1±0.2 [5] cgs |
Temperature | 7560±180 [5] K |
Metallicity | +0.11 [6] |
Rotational velocity (v sin i) | 53.1±0.5 [5] km/s |
Age | 727 [2] Myr |
Other designations | |
Database references | |
SIMBAD | data |
V529 Andromedae, also known as HD 8801, is a variable star in the constellation of Andromeda. It has a 13th magnitude visual companion star 15" away, which is just a distant star on the same line of sight.
It is also an Am star with a spectral classification Am(kA5/hF1/mF2), meaning that it has the calcium K line of a star with spectral type A5, the Balmer series of a F1 star, and metallic lines of an F2 star. [4]
V529 Andromedae was the first star known to combine Gamma Doradus and Delta Scuti type pulsations. [1] Nine different pulsation frequencies have been observed, and three of them could arise from a previously unknown stellar pulsation mode. [7]
V529 Andromedae has a 13th magnitude companion about 15 ″ away. [8] It is a far more distant star than V529 Andromedae, only coincidentally aligned in the sky. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 01h 27m 26.6729s [2] |
Declination | +41° 06′ 04.178″ [2] |
Apparent magnitude (V) | 6.46 [3] |
Characteristics | |
Spectral type | Am(kA5/hF1/mF2) [4] |
U−B color index | 0.03 [3] |
B−V color index | 0.27 [3] |
V−R color index | 0.26 [3] |
R−I color index | 0.16 [3] |
Variable type | γ Doradus and δ Scuti [5] |
Astrometry | |
Radial velocity (Rv) | 0.8±0.3 [1] km/s |
Proper motion (μ) |
RA: 9.611±0.030
[2]
mas/
yr Dec.: 25.910±0.024 [2] mas/ yr |
Parallax (π) | 18.7624 ± 0.0298 mas [2] |
Distance | 173.8 ± 0.3
ly (53.30 ± 0.08 pc) |
Absolute magnitude (MV) | +2.68 [1] |
Details | |
Mass | 1.55±0.1 [1] M☉ |
Radius | 1.7±0.1 [1] R☉ |
Luminosity | 6.5±0.6 [1] L☉ |
Surface gravity (log g) | 4.1±0.2 [5] cgs |
Temperature | 7560±180 [5] K |
Metallicity | +0.11 [6] |
Rotational velocity (v sin i) | 53.1±0.5 [5] km/s |
Age | 727 [2] Myr |
Other designations | |
Database references | |
SIMBAD | data |
V529 Andromedae, also known as HD 8801, is a variable star in the constellation of Andromeda. It has a 13th magnitude visual companion star 15" away, which is just a distant star on the same line of sight.
It is also an Am star with a spectral classification Am(kA5/hF1/mF2), meaning that it has the calcium K line of a star with spectral type A5, the Balmer series of a F1 star, and metallic lines of an F2 star. [4]
V529 Andromedae was the first star known to combine Gamma Doradus and Delta Scuti type pulsations. [1] Nine different pulsation frequencies have been observed, and three of them could arise from a previously unknown stellar pulsation mode. [7]
V529 Andromedae has a 13th magnitude companion about 15 ″ away. [8] It is a far more distant star than V529 Andromedae, only coincidentally aligned in the sky. [9]