Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 21m 26.55723s [1] |
Declination | 43° 19′ 46.7414″ [1] |
Apparent magnitude (V) | 4.96 [2] |
Characteristics | |
Spectral type | A3V [3] |
U−B color index | +0.07 [4] |
B−V color index | +0.04 [4] |
Astrometry | |
Radial velocity (Rv) | −9.00 [5] km/s |
Proper motion (μ) |
RA: −59.947
[1]
mas/
yr Dec.: −0.839 [1] mas/ yr |
Parallax (π) | 21.8865 ± 0.2690 mas [1] |
Distance | 149 ± 2
ly (45.7 ± 0.6 pc) |
Absolute magnitude (MV) | 1.64 [2] |
Details | |
Mass | 2.05 [6] M☉ |
Radius | 1.8 [7] R☉ |
Luminosity | 21 [6] L☉ |
Surface gravity (log g) | 4.19 [8] cgs |
Temperature | 8,872 [6] K |
Metallicity [Fe/H] | −0.01 [9] dex |
Rotational velocity (v sin i) | 144 [6] km/s |
Age | 125+75 −25 [10] Myr |
Other designations | |
Database references | |
SIMBAD | data |
32 Persei is a single [12] star located 149 [1] light years away from the Sun in the northern constellation of Perseus. [11] It has the Bayer designation of l Persei, while 32 Persei is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.96. [2] It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s, [5] and is a member of the Sirius supercluster: a stream of stars that share a common motion through space. [13]
This is an ordinary A-type main-sequence star with a stellar classification of A3V. [3] It is around 125 [10] million years old with a high rate of spin, showing a projected rotational velocity of 144 km/s. [6] The star has double [6] the mass of the Sun and 1.8 [7] times the Sun's radius. It is radiating 21 [6] times the luminosity of the Sun from its photosphere at an effective temperature of 8,872 K. [6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 21m 26.55723s [1] |
Declination | 43° 19′ 46.7414″ [1] |
Apparent magnitude (V) | 4.96 [2] |
Characteristics | |
Spectral type | A3V [3] |
U−B color index | +0.07 [4] |
B−V color index | +0.04 [4] |
Astrometry | |
Radial velocity (Rv) | −9.00 [5] km/s |
Proper motion (μ) |
RA: −59.947
[1]
mas/
yr Dec.: −0.839 [1] mas/ yr |
Parallax (π) | 21.8865 ± 0.2690 mas [1] |
Distance | 149 ± 2
ly (45.7 ± 0.6 pc) |
Absolute magnitude (MV) | 1.64 [2] |
Details | |
Mass | 2.05 [6] M☉ |
Radius | 1.8 [7] R☉ |
Luminosity | 21 [6] L☉ |
Surface gravity (log g) | 4.19 [8] cgs |
Temperature | 8,872 [6] K |
Metallicity [Fe/H] | −0.01 [9] dex |
Rotational velocity (v sin i) | 144 [6] km/s |
Age | 125+75 −25 [10] Myr |
Other designations | |
Database references | |
SIMBAD | data |
32 Persei is a single [12] star located 149 [1] light years away from the Sun in the northern constellation of Perseus. [11] It has the Bayer designation of l Persei, while 32 Persei is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.96. [2] It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s, [5] and is a member of the Sirius supercluster: a stream of stars that share a common motion through space. [13]
This is an ordinary A-type main-sequence star with a stellar classification of A3V. [3] It is around 125 [10] million years old with a high rate of spin, showing a projected rotational velocity of 144 km/s. [6] The star has double [6] the mass of the Sun and 1.8 [7] times the Sun's radius. It is radiating 21 [6] times the luminosity of the Sun from its photosphere at an effective temperature of 8,872 K. [6]