Back US 708 German US 708 French US 708 Italian US 708 Korean US 708 Russian US 708 Swedish US 708 Chinese
 Artist's concept of US 708 (the blue star on the left) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 09h 33m 20.865s[1] |
| Declination | +44° 17′ 05.52″[1] |
| Apparent magnitude (V) | 18.8[1] |
| Characteristics | |
| Spectral type | sdOHe[1] |
| Astrometry | |
| Radial velocity (Rv) | 708.0 ± 15.0[2] km/s |
| Proper motion (μ) | RA: −7.33 ± 0.58[2] mas/yr Dec.: 2.28 ± 0.55[2] mas/yr |
| Distance | 60,300 ± 8,500 ly (18,500 ± 2,600[2] pc) |
| Details[2] | |
| Surface gravity (log g) | 5.23 ± 0.12 cgs |
| Temperature | 44561 ± 675 K |
| Other designations | |
SDSS J093320.86+441705.4 | |
| Database references | |
| SIMBAD | data |
US 708 is a hyper-velocity class O subdwarf in Ursa Major, in the halo of the Milky Way Galaxy. One of the fastest-moving stars in the galaxy, the star was first surveyed in 1982.[3][4][5]
- ^ a b c d "US 708". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 28 November 2016.
- ^ a b c d e Brown, Warren R.; Anderson, Jay; Gnedin, Oleg Y.; Bond, Howard E.; Geller, Margaret J.; Kenyon, Scott J. (2015). "Proper Motions and Trajectories for 16 Extreme Runaway and Hypervelocity Stars". The Astrophysical Journal. 804 (1): 49. arXiv:1502.05069. Bibcode:2015ApJ...804...49B. doi:10.1088/0004-637X/804/1/49. S2CID 15799814.
- ^ Cite error: The named reference
Science2015-03-06was invoked but never defined (see the help page). - ^ Eric Mack (2015-03-08). "'Shrapnel' Star Sets Milky Way Speed Record". Forbes magazine. Retrieved March 11, 2015.
- ^ Cite error: The named reference
Astronomy2015-03-09was invoked but never defined (see the help page).