Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Carina |
Right ascension | 09h 39m 20.99948s [1] |
Declination | −61° 19′ 41.0167″ [1] |
Apparent magnitude (V) | 4.51 [2] |
Characteristics | |
Evolutionary stage | Main sequence [3] |
Spectral type | B9IV/V [4] |
B−V color index | −0.070±0.340 [2] |
Variable type | suspected [5] |
Astrometry | |
Radial velocity (Rv) | 20.0±4.2 [2] km/s |
Proper motion (μ) |
RA: −34.09
[1]
mas/
yr Dec.: +18.55 [1] mas/ yr |
Parallax (π) | 14.45 ± 0.15 mas [1] |
Distance | 226 ± 2
ly (69.2 ± 0.7 pc) |
Absolute magnitude (MV) | 0.31 [2] |
Details | |
Mass | 2.88±0.03 [3] M☉ |
Luminosity | 95.71 [2] L☉ |
Surface gravity (log g) | 4.33±0.14 [6] cgs |
Temperature | 11,561±393 [6] K |
Rotational velocity (v sin i) | 36 [3] or 51 [6] km/s |
Age | 99 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 83944 is a star system in the constellation Carina. This has the Bayer designation m Carinae, while HD 83944 is the identifier from the Henry Draper catalogue. It is a suspected variable with an apparent visual magnitude that fluctuates around 4.51 [2] with an amplitude of 0.5. [8] The system is located at a distance of approximately 226 light years from the Sun based on parallax, and it has an absolute magnitude of 0.31. [2] It is a member of the Carina association of co-moving stars. [9]
Although previously believed to be a single star, [10] Chini et al. (2012) found this to be a double-lined spectroscopic binary. [11] The stellar classification of B9IV/V matches a star that is entering the subgiant phase, [4] although stellar models suggest it is still in the main sequence. [3]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Carina |
Right ascension | 09h 39m 20.99948s [1] |
Declination | −61° 19′ 41.0167″ [1] |
Apparent magnitude (V) | 4.51 [2] |
Characteristics | |
Evolutionary stage | Main sequence [3] |
Spectral type | B9IV/V [4] |
B−V color index | −0.070±0.340 [2] |
Variable type | suspected [5] |
Astrometry | |
Radial velocity (Rv) | 20.0±4.2 [2] km/s |
Proper motion (μ) |
RA: −34.09
[1]
mas/
yr Dec.: +18.55 [1] mas/ yr |
Parallax (π) | 14.45 ± 0.15 mas [1] |
Distance | 226 ± 2
ly (69.2 ± 0.7 pc) |
Absolute magnitude (MV) | 0.31 [2] |
Details | |
Mass | 2.88±0.03 [3] M☉ |
Luminosity | 95.71 [2] L☉ |
Surface gravity (log g) | 4.33±0.14 [6] cgs |
Temperature | 11,561±393 [6] K |
Rotational velocity (v sin i) | 36 [3] or 51 [6] km/s |
Age | 99 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 83944 is a star system in the constellation Carina. This has the Bayer designation m Carinae, while HD 83944 is the identifier from the Henry Draper catalogue. It is a suspected variable with an apparent visual magnitude that fluctuates around 4.51 [2] with an amplitude of 0.5. [8] The system is located at a distance of approximately 226 light years from the Sun based on parallax, and it has an absolute magnitude of 0.31. [2] It is a member of the Carina association of co-moving stars. [9]
Although previously believed to be a single star, [10] Chini et al. (2012) found this to be a double-lined spectroscopic binary. [11] The stellar classification of B9IV/V matches a star that is entering the subgiant phase, [4] although stellar models suggest it is still in the main sequence. [3]