HD 91496
Giant star in the constellation Carina
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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.
 | |
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| 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 has a faint companion, six magnitudes fainter and 33″ away.[10] It is a distant background star.[11]