Gliese 186 (HIP 23516)

Gliese 186 is an orange dwarf star in the constellation Lepus. At 81 light years away, it shines at an apparent visual magnitude of 9.28. Gliese 186 is a component of a multiple-star system. It is moving through the Galaxy at a speed of 128.4 km/s relative to the Sun.

Sky position: RA 5h 3.4m, Dec -23 15'

Common designations: HIP 23516, Gliese 186

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Galactic Orbit of Gliese 186

(compared to the Sun)

Eccentricity: 57.1% vs. 16.0%

Angle φ : -152.2 vs. 26.0

Semi-major axis : 5,445 pc vs. 8,686 pc

Semi-minor axis: 4,471 pc vs. 8,574 pc

Focus-to-center: 3,109 pc vs. 1,388 pc

Semilatus rectum : 3,671 pc vs. 8,464 pc

Perigalacticon: 2,337 pc vs. 7,297 pc

Apogalacticon: 8,554 pc vs. 10,074 pc
 


Some Tabulated XHIP Data for Gliese 186
(see also: SIMBAD)

Astrometry
2007A&A...474..653V
  Position Proper Motion
Right Ascension: 75.84052785 1.29 mas 285.00 2.10 mas/yr.
Declination: -23.25063094 1.47 mas 162.00 1.90 mas/yr.
     
Galactic Longitude: 224.06009173 -65.37 mas/yr.
Galactic Latitude: -33.46824036 321.24 mas/yr.

Parallax: 40.23 2.08 mas


Spectrography

Spectral Type: K6V 2006AJ....132..161G.

Radial Velocity: 122.49 0.24 km/s [A rating] 2011AAS...21743412C, 2006AstL...32..759G.

Iron Abundance [Fe/H]: n/a
 



Photometry
 
band magnitude Abs. Mag.
U
B 10.56 8.59
V 9.28 7.31
R
I 7.89 5.91
J 6.70 4.73
H 6.10 4.13
K 5.92 3.95

  B-V: +1.28       V-I: +1.39


Derivations

Heliocentric distance: 24.78 pc (5.2% margin of error)

Galactocentric distance: 7,415 pc

Transverse velocity: 38.5 km/s

3D heliocentric position and motion:

toward:   

Galactic center Galactic rotation North Galactic Pole
Position ( X, Y, Z) -14.9 pc -14.4 pc -13.7 pc
Velocity (U, V, W) -93.7 km/s -80.0 km/s -36.1 km/s

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