Gliese 86, a yellow main-sequence star in Eridanus
Gliese 86 is a yellow main-sequence star in the constellation Eridanus. At 35 light years away, it shines at an apparent visual magnitude of 6.12.
Gliese 86 (HIP 10138)
Gliese 86 is a yellow main-sequence star in the constellation Eridanus. At 35 light years away, it shines at an apparent visual magnitude of 6.12. The star's age is unknown but is certainly no greater than 8.3 billion years. The iron abundance of Gliese 86 is -0.22 (60.3% of the Sun). It is moving through the Galaxy at a speed of 128.5 km/s relative to the Sun. Gliese 86 has one confirmed planet know to date (early 2012).
Sky position: RA 2h 10.4m, Dec -50° 49.8'
Common designations: HIP 10138, HD 13445, Gliese 86
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Galactic Orbit of
Gliese 86
(compared to the
Sun)
E
ccentricity: 56.8% vs. 16.0%Angle φ : -149.3°vs. 26.0°
Semi-major axis : 5,586 pc vs. 8,686 pc
Semi-minor axis: 4,598 pc vs. 8,574 pc
Focus-to-center
: 3,172 pcvs. 1,388 pcSemilatus rectum : 3,785 pc vs. 8,464 pc
Perigalacticon: 2,414 pc vs. 7,297 pc
Apogalacticon
: 8,758 pcvs. 10,074 pcSome Tabulated XHIP Data for Gliese 86
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 32.60000727° ±0.23 mas | 2,150.30 ±2.50 mas/yr. |
| Declination: | -50.82531507° ±0.26 mas | 673.20 ±2.40 mas/yr. |
| Galactic Longitude: | 275.93674991° | -2,083.62 mas/yr. |
| Galactic Latitude: | -61.96298391° | 857.63 mas/yr. |
Parallax: 92.74 ± 0.32 mas
Spectrography
Spectral Type: G9V 2006A&A...460..695T.
Radial Velocity: 57.00 ±0.80 km/s [A rating] 2005ApJS..159..141V.
Iron Abundance [Fe/H]:
-0.22 ±0.01 dex
2011A&A...530A.138C, 2007A&A...465..271R, 2005ApJS..161..444T, 2005ApJS..159..141V, 2004A&A...420..183A, 2004A&A...415.1153S, 2001A&A...373.1019S, 2000A&A...363..228S.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 6.93 | 6.77 |
| V | 6.12 | 5.96 |
| R | ||
| I | 5.24 | 5.08 |
| J | 4.79 | 4.62 |
| H | 4.25 | 4.08 |
| K | 4.13 | 3.96 |
B-V: +0.81 V-I: +0.88
Derivations
Heliocentric distance: 10.78 pc (0.3% margin of error)
Galactocentric distance: 7,399 pc
Transverse velocity: 115.2 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 0.5 pc | -5.0 pc | -9.5 pc |
| Velocity (U, V, W) | -99.2 km/s | -76.2 km/s | -29.7 km/s |