Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 17m 47.35287s [1] |
Declination | +44° 01′ 30.0800″ [1] |
Apparent magnitude (V) | 5.49 [2] |
Characteristics | |
Spectral type | B7 V [3] |
B−V color index | −0.060±0.004 [2] |
Astrometry | |
Radial velocity (Rv) | +4.0±2.0 [4] km/s |
Proper motion (μ) |
RA: +26.07
[1]
mas/
yr Dec.: −24.47 [1] mas/ yr |
Parallax (π) | 4.46 ± 0.39 mas [1] |
Distance | 730 ± 60
ly (220 ± 20 pc) |
Absolute magnitude (MV) | −0.96 [2] |
Orbit [3] | |
Period (P) | 36.5±0.1 d |
Eccentricity (e) | 0.3±0.2 |
Periastron epoch (T) | 24,407,531.7±0.1 |
Argument of periastron (ω) (secondary) | 312±9° |
Semi-amplitude (K1) (primary) | 20±3 km/s |
Details | |
30 Per A | |
Mass | 4.24±0.12 [5] M☉ |
Luminosity | 611+130 −238 [5] L☉ |
Temperature | 9,908 [6] K |
Rotational velocity (v sin i) | 212 [5] km/s |
Other designations | |
Database references | |
SIMBAD | data |
30 Persei is a binary star [3] system in the northern constellation Perseus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.49. [2] Based upon an annual parallax shift of 4.46±0.39 mas, [1] is located roughly 730 light years from the Sun. It is a member of the Perseus OB3 association, which includes the Alpha Persei Cluster. [8]
This is a single-lined spectroscopic binary star system with an orbital period of 36.5 days and an eccentricity of roughly 0.3. The visible component is a B-type main-sequence star with a stellar classification of B7 V. [3] It is spinning rapidly with a projected rotational velocity of 212 km/s. [5] The star has 4.2 [5] times the mass of the Sun and is radiating around 611 [5] times the Sun's luminosity from its photosphere at an effective temperature of 9,908 K. [6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 17m 47.35287s [1] |
Declination | +44° 01′ 30.0800″ [1] |
Apparent magnitude (V) | 5.49 [2] |
Characteristics | |
Spectral type | B7 V [3] |
B−V color index | −0.060±0.004 [2] |
Astrometry | |
Radial velocity (Rv) | +4.0±2.0 [4] km/s |
Proper motion (μ) |
RA: +26.07
[1]
mas/
yr Dec.: −24.47 [1] mas/ yr |
Parallax (π) | 4.46 ± 0.39 mas [1] |
Distance | 730 ± 60
ly (220 ± 20 pc) |
Absolute magnitude (MV) | −0.96 [2] |
Orbit [3] | |
Period (P) | 36.5±0.1 d |
Eccentricity (e) | 0.3±0.2 |
Periastron epoch (T) | 24,407,531.7±0.1 |
Argument of periastron (ω) (secondary) | 312±9° |
Semi-amplitude (K1) (primary) | 20±3 km/s |
Details | |
30 Per A | |
Mass | 4.24±0.12 [5] M☉ |
Luminosity | 611+130 −238 [5] L☉ |
Temperature | 9,908 [6] K |
Rotational velocity (v sin i) | 212 [5] km/s |
Other designations | |
Database references | |
SIMBAD | data |
30 Persei is a binary star [3] system in the northern constellation Perseus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.49. [2] Based upon an annual parallax shift of 4.46±0.39 mas, [1] is located roughly 730 light years from the Sun. It is a member of the Perseus OB3 association, which includes the Alpha Persei Cluster. [8]
This is a single-lined spectroscopic binary star system with an orbital period of 36.5 days and an eccentricity of roughly 0.3. The visible component is a B-type main-sequence star with a stellar classification of B7 V. [3] It is spinning rapidly with a projected rotational velocity of 212 km/s. [5] The star has 4.2 [5] times the mass of the Sun and is radiating around 611 [5] times the Sun's luminosity from its photosphere at an effective temperature of 9,908 K. [6]