74 Orionis, a white main-sequence star in Orion
74 Orionis is a white main-sequence star in the constellation Orion. At 63 light years away, it shines at an apparent visual magnitude of 5.04.
74 Orionis (HIP 29800)
74 Orionis is a white main-sequence star in the constellation Orion. At 63 light years away, it shines at an apparent visual magnitude of 5.04. 74 Orionis is the primary component of a multiple-star system. The star's age is estimated to be 1 billion years but is certainly no greater than 2 billion years. The iron abundance of 74 Orionis is -0.03 (93.3% of the Sun). It is moving through the Galaxy at a speed of 20.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,200 and 39,200 light years from the center of the Galaxy.
Sky position: RA 6h 16.4m, Dec +12° 16.2'
Common designations: k Orionis, 74 Orionis, HIP 29800, HD 43386, Gliese 9207
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Brightest stars in Orion:
(list all)
| Rank | Mag. | Star |
| 42 | 4.81 | 15 Orionis |
| 43 | 4.89 | 25 Orionis |
| 44 | 4.90 | 51 Orionis |
| 45 | 4.91 | Lalande 12104 |
| 46 | 4.95 | HR 1952 |
| 47 | 4.95 | 69 Orionis |
| 48 | 4.98 | Theta-1 Orionis |
| 49 | 4.98 | Theta-2 Orionis |
| 50 | 4.99 | 23 Orionis |
51
| 5.04
) 74 Orionis
| Rank | Mag. | Star |
| 52 | 5.07 | 27 Orionis |
| 53 | 5.13 | Theta-1 Orionis C |
| 54 | 5.14 | 64 Orionis |
| 55 | 5.18 | 6 Orionis |
| 56 | 5.18 | HR 1684 |
| 57 | 5.20 | 71 Orionis |
| 58 | 5.21 | 60 Orionis |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 74 Orionis
(compared to the Sun)
E
ccentricity: 23.8% vs. 16.0%Angle φ : 1.5°vs. 26.0°
Semi-major axis : 9,728 pc vs. 8,686 pc
Semi-minor axis: 9,450 pc vs. 8,574 pc
Focus-to-center
: 2,310 pcvs. 1,388 pcSemilatus rectum : 9,179 pc vs. 8,464 pc
Perigalacticon: 7,418 pc vs. 7,297 pc
Apogalacticon
: 12,038 pcvs. 10,074 pcSome Tabulated XHIP Data for 74 Orionis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 94.11070865° ±0.25 mas | 81.90 ±0.50 mas/yr. |
| Declination: | 12.27171048° ±0.17 mas | 186.90 ±0.60 mas/yr. |
| Galactic Longitude: | 198.03402509° | -125.63 mas/yr. |
| Galactic Latitude: | -2.02626497° | 160.80 mas/yr. |
Parallax: 51.95 ± 0.27 mas
Spectrography
Spectral Type: F5V 2003AJ....126.2048G.
Radial Velocity: 9.17 ±0.27 km/s [A rating] 2010A&A...521A..12M, 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.03 ±0.02 dex
2011A&A...530A.138C, 2005ApJS..161..444T, 2000Priv.C........F.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 5.47 | 4.05 |
| V | 5.04 | 3.62 |
| R | 4.80 | 3.38 |
| I | 4.60 | 3.18 |
| J | 4.47 | 3.05 |
| H | 4.20 | 2.78 |
| K | 4.25 | 2.82 |
B-V: +0.43 V-I: +0.44
Derivations
Heliocentric distance: 19.25 pc (0.5% margin of error)
Galactocentric distance: 7,418 pc
Transverse velocity: 18.6 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -18.3 pc | -6.0 pc | -0.7 pc |
| Velocity (U, V, W) | -12.8 km/s | 7.9 km/s | 14.3 km/s |