Gliese 179, a type M3 star in Orion
Gliese 179 is a type M3 star in the constellation Orion. At 40 light years away, it shines at an apparent visual magnitude of 11.94.
Gliese 179 (HIP 22627)
Gliese 179 is a type M3 star in the constellation Orion. At 40 light years away, it shines at an apparent visual magnitude of 11.94. It is moving through the Galaxy at a speed of 21.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 20,900 and 27,200 light years from the center of the Galaxy. Gliese 179 has one confirmed planet know to date (early 2012).
Sky position: RA 4h 52.1m, Dec +6° 28.8'
Common designations: HIP 22627, Gliese 179, Ross 401, Wolf 1539
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Galactic Orbit of
Gliese 179
(compared to the
Sun)
E
ccentricity: 13.0% vs. 16.0%Angle φ : 99.7°vs. 26.0°
Semi-major axis : 7,373 pc vs. 8,686 pc
Semi-minor axis: 7,310 pc vs. 8,574 pc
Focus-to-center
: 958 pcvs. 1,388 pcSemilatus rectum : 7,248 pc vs. 8,464 pc
Perigalacticon: 6,415 pc vs. 7,297 pc
Apogalacticon
: 8,331 pcvs. 10,074 pcSome Tabulated XHIP Data for Gliese 179
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 73.02350682° ±3.43 mas | 142.98 ±4.06 mas/yr. |
| Declination: | 6.47729302° ±2.05 mas | -309.39 ±2.38 mas/yr. |
| Galactic Longitude: | 192.22491297° | 337.27 mas/yr. |
| Galactic Latitude: | -22.86243907° | -49.10 mas/yr. |
Parallax: 81.38 ± 4.04 mas
Spectrography
Spectral Type: M3.5 1985ApJS...59..197B.
Radial Velocity: -9.05 ±0.15 km/s [A rating] 2011AAS...21743412C, 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
14.79
14.35
B
13.53
13.09
V
11.94
11.50
R
10.85
10.41
I
9.33
8.89
J
7.81
7.37
H
7.21
6.77
K
6.94
6.50
B-V: +1.59 V-I: +2.61
Derivations
Heliocentric distance: 12.25 pc (5.0% margin of error)
Galactocentric distance: 7,411 pc
Transverse velocity: 19.8 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -11.0 pc | -2.4 pc | -4.8 pc |
| Velocity (U, V, W) | 13.4 km/s | -17.1 km/s | 0.9 km/s |