HD 106906, a white main-sequence star in Crux
HD 106906 is a white main-sequence star in the constellation Crux. At 299 light years away, it shines at an apparent visual magnitude of 7.8.
HD 106906 (HIP 59960)
HD 106906 is a white main-sequence star in the constellation Crux. At 299 light years away, it shines at an apparent visual magnitude of 7.80. The star's age is estimated to be 1.9 billion years but is certainly no less than 1.7 billion years and no greater than 2.2 billion years. The iron abundance of HD 106906 is -0.04 (91.2% of the Sun). It is moving through the Galaxy at a speed of 20.5 km/s relative to the Sun and is part of the Lower Centaurus Crux moving group. Its projected Galactic orbit carries it between 22,200 and 24,300 light years from the center of the Galaxy.
Sky position: RA 12h 17.9m, Dec -55° 58.8'
Common designations: HIP 59960, HD 106906
Galactic Orbit of
HD 106906
(compared to the
Sun)
E
ccentricity: 4.6% vs. 16.0%Angle φ : 135.3°vs. 26.0°
Semi-major axis : 7,130 pc vs. 8,686 pc
Semi-minor axis: 7,123 pc vs. 8,574 pc
Focus-to-center
: 331 pcvs. 1,388 pcSemilatus rectum : 7,115 pc vs. 8,464 pc
Perigalacticon: 6,800 pc vs. 7,297 pc
Apogalacticon
: 7,461 pcvs. 10,074 pcSome Tabulated XHIP Data for HD 106906
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 184.47180300° ±0.44 mas | -39.16 ±0.54 mas/yr. |
| Declination: | -55.97549505° ±0.46 mas | -12.28 ±0.52 mas/yr. |
| Galactic Longitude: | 298.21895521° | -37.21 mas/yr. |
| Galactic Latitude: | 6.58893496° | -17.29 mas/yr. |
Parallax: 10.86 ± 0.71 mas
Spectrography
Spectral Type: F5V 1975MSS...C01....0H.
Radial Velocity: 10.20 ±1.70 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.04 ±0.08 dex
2011A&A...530A.138C.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 8.26 | 3.45 |
| V | 7.80 | 2.99 |
| R | ||
| I | 7.32 | 2.51 |
| J | 6.95 | 2.13 |
| H | 6.76 | 1.95 |
| K | 6.68 | 1.87 |
B-V: +0.46 V-I: +0.48
Derivations
Heliocentric distance: 91.69 pc (fitted to cluster)
Galactocentric distance: 7,357 pc
Transverse velocity: 17.8 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 43.1 pc | -80.3 pc | 10.5 pc |
| Velocity (U, V, W) | -9.1 km/s | -17.3 km/s | -6.3 km/s |