Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Orion |
Right ascension | 06h 16m 26.61878s [1] |
Declination | +12° 16′ 19.7909″ [1] |
Apparent magnitude (V) | 5.04 [2] |
Characteristics | |
Evolutionary stage | main sequence |
Spectral type | F5V [3] |
U−B color index | -0.02 [4] |
B−V color index | +0.42 [4] |
Astrometry | |
Radial velocity (Rv) | +9.17 [5] km/s |
Proper motion (μ) | RA: +83.102 [1] mas/yr Dec.: +186.263 [1] mas/yr |
Parallax (π) | 51.1930±0.1907 mas [1] |
Distance | 63.7 ± 0.2 ly (19.53 ± 0.07 pc) |
Absolute magnitude (MV) | 3.62 [2] |
Details | |
Mass | 1.39 [6] M☉ |
Radius | 1.3 [7] R☉ |
Luminosity | 3.02 [2] L☉ |
Surface gravity (log g) | 4.34 [6] cgs |
Temperature | 6,595 [6] K |
Metallicity [Fe/H] | -0.03 [2] dex |
Rotational velocity (v sin i) | 18.8 [8] km/s |
Age | 2.316 [6] Gyr |
Other designations | |
k Ori, 74 Ori, BD+12°1084, FK5 1169, GC 8033, GJ 9207, HD 43386, HIP 29800, HR 2241, SAO 95476, CCDM J06165+1216A, WDS J06164+1216A, LTT 11823 [9] | |
Database references | |
SIMBAD | data |
74 Orionis is a single [10] star in the equatorial constellation of Orion. It has the Bayer designation k Orionis, while 74 Orionis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white hued point of light with an apparent visual magnitude of 5.04. [2] It is located at a distance of 64 light years from the Sun based on parallax, [1] and is drifting further away with a radial velocity of +9 km/s. [5] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.204 arc seconds per annum. [11]
This object is an ordinary F-type main-sequence star with a stellar classification of F5V. [3] It is an estimated 2.3 [6] billion years old and is spinning with a projected rotational velocity of 18.8 km/s. [8] The star has 1.4 [6] times the mass of the Sun and 1.3 [7] times the Sun's radius. Metallicity is near solar, [2] which indicates it has a Sun-like abundance of elements. The star is radiating three [2] times the luminosity of the Sun from its photosphere at an effective temperature of 6,595 K. [6]
74 Orionis has two visual companions: component B, with magnitude 12.5 and separation 32.1", and C, with magnitude 9.0 and separation 195.5". [12]