Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Vela |
Right ascension | 08h 56m 19.2615s [1] |
Declination | −52° 43′ 24.5059″ [1] |
Apparent magnitude (V) | 4.70 |
Characteristics | |
Spectral type | B5V + B9.5V [2] |
Astrometry | |
A | |
Proper motion (μ) |
RA: −15.386±0.588
[1]
mas/
yr Dec.: 14.468±0.524 [1] mas/ yr |
Parallax (π) | 8.5823 ± 0.3177 mas [1] |
Distance | 380 ± 10
ly (117 ± 4 pc) |
B | |
Proper motion (μ) |
RA: −17.787±0.271
[3]
mas/
yr Dec.: 12.031±0.250 [3] mas/ yr |
Parallax (π) | 8.1722 ± 0.1358 mas [3] |
Distance | 399 ± 7
ly (122 ± 2 pc) |
Orbit | |
Primary | Aa |
Companion | Ab |
Period (P) | 1.097654 |
Eccentricity (e) | 0 |
Semi-amplitude (K1) (primary) | 48.7 km/s |
Semi-amplitude (K2) (secondary) | 92.8 km/s |
Details | |
Aa | |
Mass | 4.14 [4] M☉ |
Temperature | 16,000 [2] K |
Rotational velocity (v sin i) | 50 [2] km/s |
Ab | |
Mass | 0.59 [4] M☉ |
Temperature | 9,500 [2] K |
B | |
Mass | 1.55 [4] M☉ |
Temperature | 8,871 [3] K |
Other designations | |
Database references | |
SIMBAD | data |
H Velorum is a triple star system in the constellation Vela, at a distance of approximately 390 light years.
A visual pair of stars with magnitudes 4.7 and 8.0 are separated by 2.7 ″. Their estimated orbital period is 646,000 years. The primary is a spectroscopic binary with two B-class main sequence stars in a 1.1-day orbit. [2]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Vela |
Right ascension | 08h 56m 19.2615s [1] |
Declination | −52° 43′ 24.5059″ [1] |
Apparent magnitude (V) | 4.70 |
Characteristics | |
Spectral type | B5V + B9.5V [2] |
Astrometry | |
A | |
Proper motion (μ) |
RA: −15.386±0.588
[1]
mas/
yr Dec.: 14.468±0.524 [1] mas/ yr |
Parallax (π) | 8.5823 ± 0.3177 mas [1] |
Distance | 380 ± 10
ly (117 ± 4 pc) |
B | |
Proper motion (μ) |
RA: −17.787±0.271
[3]
mas/
yr Dec.: 12.031±0.250 [3] mas/ yr |
Parallax (π) | 8.1722 ± 0.1358 mas [3] |
Distance | 399 ± 7
ly (122 ± 2 pc) |
Orbit | |
Primary | Aa |
Companion | Ab |
Period (P) | 1.097654 |
Eccentricity (e) | 0 |
Semi-amplitude (K1) (primary) | 48.7 km/s |
Semi-amplitude (K2) (secondary) | 92.8 km/s |
Details | |
Aa | |
Mass | 4.14 [4] M☉ |
Temperature | 16,000 [2] K |
Rotational velocity (v sin i) | 50 [2] km/s |
Ab | |
Mass | 0.59 [4] M☉ |
Temperature | 9,500 [2] K |
B | |
Mass | 1.55 [4] M☉ |
Temperature | 8,871 [3] K |
Other designations | |
Database references | |
SIMBAD | data |
H Velorum is a triple star system in the constellation Vela, at a distance of approximately 390 light years.
A visual pair of stars with magnitudes 4.7 and 8.0 are separated by 2.7 ″. Their estimated orbital period is 646,000 years. The primary is a spectroscopic binary with two B-class main sequence stars in a 1.1-day orbit. [2]