Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Canis Major |
Right ascension | 07h 16m 34.99315s [1] |
Declination | −27° 52′ 52.2453″ [1] |
Apparent magnitude (V) | 4.66 [2] |
Characteristics | |
Evolutionary stage | AGB [3] |
Spectral type | M2III [4] |
B−V color index | 1.589±0.028 [2] |
Astrometry | |
Radial velocity (Rv) | +41.5±2.8 [2] km/s |
Proper motion (μ) |
RA: −13.479
[1]
mas/
yr Dec.: +38.625 [1] mas/ yr |
Parallax (π) | 8.3189 ± 0.2874 mas [1] |
Distance | 390 ± 10
ly (120 ± 4 pc) |
Absolute magnitude (MV) | −0.80 [2] |
Details | |
Radius | 61.1+7.3 −6.9 [1] R☉ |
Luminosity | 699.7±27.3 [1] L☉ |
Temperature | 3,797+233 −209 [1] K |
Other designations | |
Database references | |
SIMBAD | data |
HD 56618 is a single [6] star in the southern constellation of Canis Major. It is a red-hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.66. [2] This object is located at a distance of approximately 390 light years from the Sun based on parallax measurements. It is drifting further away with a radial velocity of +41.5 km/s, [2] having come to within 203 light-years some 2.2 million years ago. [2] Olin J. Eggen listed it as a probable member of the Hyades supercluster. [7]
This is an aging red giant star currently on the asymptotic giant branch [3] with a stellar classification of M2III. [4] It is not longer undergoing core hydrogen fusion and has expanded to 61 [1] times the radius of the Sun. The star is radiating 700 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,797 K. [1]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Canis Major |
Right ascension | 07h 16m 34.99315s [1] |
Declination | −27° 52′ 52.2453″ [1] |
Apparent magnitude (V) | 4.66 [2] |
Characteristics | |
Evolutionary stage | AGB [3] |
Spectral type | M2III [4] |
B−V color index | 1.589±0.028 [2] |
Astrometry | |
Radial velocity (Rv) | +41.5±2.8 [2] km/s |
Proper motion (μ) |
RA: −13.479
[1]
mas/
yr Dec.: +38.625 [1] mas/ yr |
Parallax (π) | 8.3189 ± 0.2874 mas [1] |
Distance | 390 ± 10
ly (120 ± 4 pc) |
Absolute magnitude (MV) | −0.80 [2] |
Details | |
Radius | 61.1+7.3 −6.9 [1] R☉ |
Luminosity | 699.7±27.3 [1] L☉ |
Temperature | 3,797+233 −209 [1] K |
Other designations | |
Database references | |
SIMBAD | data |
HD 56618 is a single [6] star in the southern constellation of Canis Major. It is a red-hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.66. [2] This object is located at a distance of approximately 390 light years from the Sun based on parallax measurements. It is drifting further away with a radial velocity of +41.5 km/s, [2] having come to within 203 light-years some 2.2 million years ago. [2] Olin J. Eggen listed it as a probable member of the Hyades supercluster. [7]
This is an aging red giant star currently on the asymptotic giant branch [3] with a stellar classification of M2III. [4] It is not longer undergoing core hydrogen fusion and has expanded to 61 [1] times the radius of the Sun. The star is radiating 700 [1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,797 K. [1]