Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Carina [1] |
Right ascension | 10h 31m 02.057s [2] |
Declination | −73° 13′ 17.38″ [2] |
Apparent magnitude (V) | 4.92 [3] |
Characteristics | |
Evolutionary stage | giant |
Spectral type | K4/5 III [4] |
Variable type | suspected [5] |
Astrometry | |
Radial velocity (Rv) | 13.14 [2] km/s |
Proper motion (μ) | RA: −7.00 [2] mas/yr Dec.: +7.66 [2] mas/yr |
Parallax (π) | 3.1223±0.1500 mas [2] |
Distance | 1,040 ± 50 ly (320 ± 20 pc) |
Absolute magnitude (MV) | −2.55 [1] |
Details | |
Mass | 6 [6] M☉ |
Radius | 115 [2] R☉ |
Luminosity | 2,787 [2] L☉ |
Surface gravity (log g) | 1.34 [7] cgs |
Temperature | 3,915 [2] K |
Rotational velocity (v sin i) | 5.7 [8] km/s |
Other designations | |
CD−72°614, HD 91496, HIP 51495, HR 4142, SAO 256723 [9] | |
Database references | |
SIMBAD | data |
HD 91496 (HR 4142) is a giant star in the constellation Carina, with an apparent magnitude is 4.92 and an MK spectral class of K4/5 III. It has been suspected of varying in brightness, but this has not been confirmed.
HD 91496 has a faint companion, six magnitudes fainter and 33″ away. [10] It is a distant background star. [11]