Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Antlia |
Right ascension | 10h 49m 57.0188s [1] |
Declination | −34° 03′ 29.4506″ [1] |
Apparent magnitude (V) | 5.61 [2] |
Characteristics | |
Evolutionary stage | main sequence [3] |
Spectral type | A1 V [4] |
U−B color index | +0.05 [5] |
B−V color index | +0.04 [5] |
Astrometry | |
Radial velocity (Rv) | −9.5±1.3 [6] km/s |
Proper motion (μ) |
RA: −41.069
[1]
mas/
yr Dec.: +5.845 [1] mas/ yr |
Parallax (π) | 8.7989 ± 0.1617 mas [1] |
Distance | 371 ± 7
ly (114 ± 2 pc) |
Absolute magnitude (MV) | 0.00 [2] |
Details [3] | |
Mass | 2.78±0.05 M☉ |
Radius | 3.89 [7] R☉ |
Luminosity | 101±9 L☉ |
Surface gravity (log g) | 3.77 [8] cgs |
Temperature | 8995+125 −123 K |
Rotational velocity (v sin i) | 85 [9] km/s |
Age | 256±6 Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 93905 (HR 4238) is a solitary star located in the southern constellation Antlia. The star has an absolute magnitude of 0 [2] and an apparent magnitude of 5.61, [2] making it faintly visible to the naked eye under ideal conditions. The star is located 371 light years [1] away based on its parallax shift and is drifting closer with a helocentric radial velocity of −9.6 km/s. [6]
This star has a classification of A1 V, [4] which indicates that it is an ordinary A-type main-sequence star that is fusing hydrogen at its core. At present it has 2.78 [3] times the mass of the Sun but is large and over luminous for its class with 3.89 [7] times and 101 [3] times the radius and luminosity of the Sun respectively. This is because HD 93905 has already completed most of its main sequence lifetime at an age of 256 million years. [3] HD 93905 has a surface temperature of 8,895 K [3] and spins quickly with a projected rotational velocity of 85 km/s. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Antlia |
Right ascension | 10h 49m 57.0188s [1] |
Declination | −34° 03′ 29.4506″ [1] |
Apparent magnitude (V) | 5.61 [2] |
Characteristics | |
Evolutionary stage | main sequence [3] |
Spectral type | A1 V [4] |
U−B color index | +0.05 [5] |
B−V color index | +0.04 [5] |
Astrometry | |
Radial velocity (Rv) | −9.5±1.3 [6] km/s |
Proper motion (μ) |
RA: −41.069
[1]
mas/
yr Dec.: +5.845 [1] mas/ yr |
Parallax (π) | 8.7989 ± 0.1617 mas [1] |
Distance | 371 ± 7
ly (114 ± 2 pc) |
Absolute magnitude (MV) | 0.00 [2] |
Details [3] | |
Mass | 2.78±0.05 M☉ |
Radius | 3.89 [7] R☉ |
Luminosity | 101±9 L☉ |
Surface gravity (log g) | 3.77 [8] cgs |
Temperature | 8995+125 −123 K |
Rotational velocity (v sin i) | 85 [9] km/s |
Age | 256±6 Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 93905 (HR 4238) is a solitary star located in the southern constellation Antlia. The star has an absolute magnitude of 0 [2] and an apparent magnitude of 5.61, [2] making it faintly visible to the naked eye under ideal conditions. The star is located 371 light years [1] away based on its parallax shift and is drifting closer with a helocentric radial velocity of −9.6 km/s. [6]
This star has a classification of A1 V, [4] which indicates that it is an ordinary A-type main-sequence star that is fusing hydrogen at its core. At present it has 2.78 [3] times the mass of the Sun but is large and over luminous for its class with 3.89 [7] times and 101 [3] times the radius and luminosity of the Sun respectively. This is because HD 93905 has already completed most of its main sequence lifetime at an age of 256 million years. [3] HD 93905 has a surface temperature of 8,895 K [3] and spins quickly with a projected rotational velocity of 85 km/s. [9]