Gliese 205, a red dwarf star in Orion
Gliese 205 is a red dwarf star in the constellation Orion. At 18.5 light years away, it shines at an apparent visual magnitude of 7.97.
Gliese 205 (HIP 25878)
Gliese 205 is a red dwarf star in the constellation Orion. At 18.5 light years away, it shines at an apparent visual magnitude of 7.97. Gliese 205 is the primary component of a multiple-star system. The iron abundance of Gliese 205 is +0.22 (166.0% of the Sun). It is moving through the Galaxy at a speed of 60.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 11,400 and 25,100 light years from the center of the Galaxy.
Sky position: RA 5h 31.4m, Dec -3° 40.2'
Common designations: HIP 25878, HD 36395, Gliese 205, Wolf 1453
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Galactic Orbit of
Gliese 205
(compared to the
Sun)
E
ccentricity: 37.6% vs. 16.0%Angle φ : 158.6°vs. 26.0°
Semi-major axis : 5,606 pc vs. 8,686 pc
Semi-minor axis: 5,196 pc vs. 8,574 pc
Focus-to-center
: 2,105 pcvs. 1,388 pcSemilatus rectum : 4,816 pc vs. 8,464 pc
Perigalacticon: 3,501 pc vs. 7,297 pc
Apogalacticon
: 7,711 pcvs. 10,074 pcSome Tabulated XHIP Data for Gliese 205
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 82.86229427° ±0.94 mas | 765.10 ±1.90 mas/yr. |
| Declination: | -3.67214231° ±0.66 mas | -2,092.10 ±2.00 mas/yr. |
| Galactic Longitude: | 206.92898206° | 2,208.95 mas/yr. |
| Galactic Latitude: | -19.44685367° | -287.76 mas/yr. |
Parallax: 176.77 ± 1.18 mas
Spectrography
Spectral Type: M1.5V 2002AJ....123.2002H.
Radial Velocity: 8.67 ±0.10 km/s [A rating] 2002ApJS..141..503N.
Iron Abundance [Fe/H]:
0.22 dex
2008A&A...480...91S, 2005MNRAS.356..963W.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 9.44 | 10.68 |
| V | 7.97 | 9.21 |
| R | ||
| I | 6.06 | 7.30 |
| J | ||
| H | ||
| K |
B-V: +1.47 V-I: +1.91
Derivations
Heliocentric distance: 5.66 pc (0.7% margin of error)
Galactocentric distance: 7,405 pc
Transverse velocity: 59.7 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -4.8 pc | -2.4 pc | -1.9 pc |
| Velocity (U, V, W) | 21.8 km/s | -55.3 km/s | -10.2 km/s |