5 Orionis, a red giant star in Orion
5 Orionis is a red giant star in the constellation Orion. At 589 light years away, it shines at an apparent visual magnitude of 5.33.
5 Orionis (HIP 22730)
5 Orionis is a red giant star in the constellation Orion. At 589 light years away, it shines at an apparent visual magnitude of 5.33. It is moving through the Galaxy at a speed of 31.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 19,700 and 24,700 light years from the center of the Galaxy.
Sky position: RA 4h 53.4m, Dec +2° 30.6'
Common designations: 5 Orionis, HIP 22730, HD 31139
Brightest stars in Orion:
(list all)
| Rank | Mag. | Star |
| 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 |
| 59 | 5.24 | 45 Orionis |
| 60 | 5.26 | 52 Orionis |
| 61 | 5.32 | 38 Orionis |
62
| 5.33
) 5 Orionis
| Rank | Mag. | Star |
| 63 | 5.33 | HR 1571 |
| 64 | 5.33 | 14 Orionis |
| 65 | 5.34 | 21 Orionis |
| 66 | 5.34 | HR 1861 |
| 67 | 5.34 | 72 Orionis |
| 68 | 5.35 | HR 1519 |
| 69 | 5.36 | VV Orionis |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 5 Orionis
(compared to the Sun)
E
ccentricity: 11.4% vs. 16.0%Angle φ : 168.1°vs. 26.0°
Semi-major axis : 6,805 pc vs. 8,686 pc
Semi-minor axis: 6,761 pc vs. 8,574 pc
Focus-to-center
: 774 pcvs. 1,388 pcSemilatus rectum : 6,717 pc vs. 8,464 pc
Perigalacticon: 6,031 pc vs. 7,297 pc
Apogalacticon
: 7,579 pcvs. 10,074 pcSome Tabulated XHIP Data for 5 Orionis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 73.34481413° ±0.22 mas | 29.67 ±0.28 mas/yr. |
| Declination: | 2.50826500° ±0.14 mas | -16.40 ±0.17 mas/yr. |
| Galactic Longitude: | 196.07839784° | 29.49 mas/yr. |
| Galactic Latitude: | -24.71304092° | 16.72 mas/yr. |
Parallax: 5.52 ± 0.26 mas
Spectrography
Spectral Type: M1 III 1999MSS...C05....0H.
Radial Velocity: 12.82 ±0.20 km/s [A rating] 2005A&A...430..165F.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
6.96
0.68
V
5.33
-0.95
R
I
3.47
-2.82
J
2.09
-4.19
H
1.29
-5.00
K
1.09
-5.20
B-V: +1.63 V-I: +1.86
Derivations
Heliocentric distance: 180.68 pc (4.7% margin of error)
Galactocentric distance: 7,558 pc
Transverse velocity: 29.0 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -157.7 pc | -45.5 pc | -75.5 pc |
| Velocity (U, V, W) | -9.9 km/s | -29.2 km/s | 7.7 km/s |