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 J2000.0 | |
---|---|
Constellation | Carina |
Right ascension | 10h 31m 02.057s[1] |
Declination | −73° 13′ 17.38″[1] |
Apparent magnitude (V) | 4.92[2] |
Characteristics | |
Evolutionary stage | giant |
Spectral type | K4/5 III[3] |
Variable type | suspected[4] |
Astrometry | |
Radial velocity (Rv) | 13.14[1] km/s |
Proper motion (μ) | RA: -7.00[1] mas/yr Dec.: 7.66[1] mas/yr |
Parallax (π) | 3.1223 ± 0.1500 mas[1] |
Distance | 1,040 ± 50 ly (320 ± 20 pc) |
Absolute magnitude (MV) | -2.55[5] |
Details | |
Mass | 6[6] M☉ |
Radius | 115[1] R☉ |
Luminosity | 2,787[1] L☉ |
Surface gravity (log g) | 1.34[7] cgs |
Temperature | 3,915[1] K |
Rotational velocity (v sin i) | 5.7[8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 91496 has a faint companion, six magnitudes fainter and 33″ away.[10] It is a distant background star.[11]