Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Carina |
Right ascension | 08h 46m 42.54928s [2] |
Declination | −56° 46′ 11.1922″ [2] |
Apparent magnitude (V) | 4.50 [3] (4.40–4.51) [4] |
Characteristics | |
Spectral type | B3V(n) [5] |
B−V color index | −0.169±0.008 [3] |
Variable type | Be [6] |
Astrometry | |
Radial velocity (Rv) | +27.0±7.4 [3] km/s |
Proper motion (μ) |
RA: −9.29
[2]
mas/
yr Dec.: +8.85 [2] mas/ yr |
Parallax (π) | 5.39 ± 0.14 mas [2] |
Distance | 610 ± 20
ly (186 ± 5 pc) |
Absolute magnitude (MV) | −1.84 [3] |
Details | |
Mass | 7.1±0.1 [7] M☉ |
Radius | 3.00±0.06 [8] R☉ |
Luminosity | 2,328+120 −105 [9] L☉ |
Surface gravity (log g) | 3.79±0.18 [9] cgs |
Temperature | 17,660±560 [9] K |
Rotational velocity (v sin i) | 268±18 [9] km/s |
Age | 31.6±3.9 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
V344 Carinae is a single [11] star in the southern constellation of Carina. It has the Bayer designation f Carinae, while V344 Carinae is its variable star designation. This star has a blue-white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around 4.50. [3] Historically, it was mentioned in the Almagest, suggesting that some time around 130 BCE it was brighter than its current magnitude. [12] This object is located at a distance of approximately 610 light-years from the Sun based on parallax. [2] The star is drifting further away with a radial velocity of around +27 km/s. [3]
This is a B-type main-sequence star with a stellar classification of B3V(n). [5] It is a Be star; a rapidly rotating star that is hosting a circumstellar disk of hot, decreted gas. [13] It is a photometrically variable Be star, having a brightness that ranges from 4.4 down to 4.51 in visual magnitude, and has been classified as a Gamma Cassiopeiae variable. [4] The star is 32 [7] million years old and is spinning with a projected rotational velocity of 268 km/s. [9] It has seven [7] times the mass of the Sun and around 3.0 [8] times the Sun's radius. The star is radiating 2,328 [9] times the luminosity of the Sun from its photosphere at an effective temperature of 17,660 K. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Carina |
Right ascension | 08h 46m 42.54928s [2] |
Declination | −56° 46′ 11.1922″ [2] |
Apparent magnitude (V) | 4.50 [3] (4.40–4.51) [4] |
Characteristics | |
Spectral type | B3V(n) [5] |
B−V color index | −0.169±0.008 [3] |
Variable type | Be [6] |
Astrometry | |
Radial velocity (Rv) | +27.0±7.4 [3] km/s |
Proper motion (μ) |
RA: −9.29
[2]
mas/
yr Dec.: +8.85 [2] mas/ yr |
Parallax (π) | 5.39 ± 0.14 mas [2] |
Distance | 610 ± 20
ly (186 ± 5 pc) |
Absolute magnitude (MV) | −1.84 [3] |
Details | |
Mass | 7.1±0.1 [7] M☉ |
Radius | 3.00±0.06 [8] R☉ |
Luminosity | 2,328+120 −105 [9] L☉ |
Surface gravity (log g) | 3.79±0.18 [9] cgs |
Temperature | 17,660±560 [9] K |
Rotational velocity (v sin i) | 268±18 [9] km/s |
Age | 31.6±3.9 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
V344 Carinae is a single [11] star in the southern constellation of Carina. It has the Bayer designation f Carinae, while V344 Carinae is its variable star designation. This star has a blue-white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around 4.50. [3] Historically, it was mentioned in the Almagest, suggesting that some time around 130 BCE it was brighter than its current magnitude. [12] This object is located at a distance of approximately 610 light-years from the Sun based on parallax. [2] The star is drifting further away with a radial velocity of around +27 km/s. [3]
This is a B-type main-sequence star with a stellar classification of B3V(n). [5] It is a Be star; a rapidly rotating star that is hosting a circumstellar disk of hot, decreted gas. [13] It is a photometrically variable Be star, having a brightness that ranges from 4.4 down to 4.51 in visual magnitude, and has been classified as a Gamma Cassiopeiae variable. [4] The star is 32 [7] million years old and is spinning with a projected rotational velocity of 268 km/s. [9] It has seven [7] times the mass of the Sun and around 3.0 [8] times the Sun's radius. The star is radiating 2,328 [9] times the luminosity of the Sun from its photosphere at an effective temperature of 17,660 K. [9]