Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pictor |
Right ascension | 06h 07m 03.40671s [1] |
Declination | −62° 09′ 16.4496″ [1] |
Apparent magnitude (V) | 5.04 [2] |
Characteristics | |
Spectral type | K2-3III [3] |
U−B color index | +1.35 [4] |
B−V color index | +1.25 [4] |
Variable type | suspected [5] |
Astrometry | |
Radial velocity (Rv) | +21.60 [6] km/s |
Proper motion (μ) |
RA: +15.513
[1]
mas/
yr Dec.: −70.013 [1] mas/ yr |
Parallax (π) | 8.378 ± 0.0939 mas [1] |
Distance | 389 ± 4
ly (119 ± 1 pc) |
Absolute magnitude (MV) | −0.18 [2] |
Details | |
Mass | 2.8 [7] M☉ |
Radius | 27 [7] R☉ |
Luminosity | 270 [1] L☉ |
Temperature | 4,530 [8] K |
Rotational velocity (v sin i) | 1.7 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 42540, also known as HR 2196, is a giant star in the constellation Pictor. A class K2-3III orange giant, its apparent magnitude is 5.04 and it is approximately 389 light years away based on parallax.
This star was mistakenly catalogued as Mu Doradus (Mu Dor/μ Doradus/μ Dor) at incorrect coordinates, then assumed to be variable as no 5th-magnitude star was seen at that position. It also has the Gould designation 47 G. Pictoris. [10]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pictor |
Right ascension | 06h 07m 03.40671s [1] |
Declination | −62° 09′ 16.4496″ [1] |
Apparent magnitude (V) | 5.04 [2] |
Characteristics | |
Spectral type | K2-3III [3] |
U−B color index | +1.35 [4] |
B−V color index | +1.25 [4] |
Variable type | suspected [5] |
Astrometry | |
Radial velocity (Rv) | +21.60 [6] km/s |
Proper motion (μ) |
RA: +15.513
[1]
mas/
yr Dec.: −70.013 [1] mas/ yr |
Parallax (π) | 8.378 ± 0.0939 mas [1] |
Distance | 389 ± 4
ly (119 ± 1 pc) |
Absolute magnitude (MV) | −0.18 [2] |
Details | |
Mass | 2.8 [7] M☉ |
Radius | 27 [7] R☉ |
Luminosity | 270 [1] L☉ |
Temperature | 4,530 [8] K |
Rotational velocity (v sin i) | 1.7 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 42540, also known as HR 2196, is a giant star in the constellation Pictor. A class K2-3III orange giant, its apparent magnitude is 5.04 and it is approximately 389 light years away based on parallax.
This star was mistakenly catalogued as Mu Doradus (Mu Dor/μ Doradus/μ Dor) at incorrect coordinates, then assumed to be variable as no 5th-magnitude star was seen at that position. It also has the Gould designation 47 G. Pictoris. [10]