10 Arietis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aries |
| Right ascension | 02h 03m 39.34547s[1] |
| Declination | +25° 56′ 07.7129″[1] |
| Apparent magnitude (V) | 5.63[2] |
| Characteristics | |
| Spectral type | F8 IV + F9 V[2] |
| Astrometry | |
| Radial velocity (Rv) | +12.9[3] km/s |
| Proper motion (μ) | RA: +128.01[1] mas/yr Dec.: +11.19[1] mas/yr |
| Parallax (π) | 20.53 ± 0.67[1] mas |
| Distance | 159 ± 5 ly (49 ± 2 pc) |
| Absolute magnitude (MV) | 2.21[3] |
| Orbit[4] | |
| Period (P) | 325 yr |
| Semi-major axis (a) | 1.39" |
| Eccentricity (e) | 0.59 |
| Inclination (i) | 51° |
| Longitude of the node (Ω) | 20.5° |
| Periastron epoch (T) | B1931.6 |
| Argument of periastron (ω) (secondary) | 165° |
| Details | |
| Metallicity [Fe/H] | –0.10[3] dex |
| Age | 1.9[3] Gyr |
| Other designations | |
10 Arietis (abbreviated 10 Ari) is a binary star in the northern constellation of Aries. 10 Arietis is the Flamsteed designation. It has an overall apparent visual magnitude of 5.63 and consists of two F-type stars in orbit about each other. The orbital period is approximately 325 years.[4] based upon an annual parallax shift of 20.53 mas,[1] it is located at a distance of approximately 159 light-years (49 parsecs) from Earth.
References
- 1 2 3 4 5 6 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
- 1 2 Edwards, T. W. (April 1976), "MK classification for visual binary components", Astronomical Journal 81: 245–249, Bibcode:1976AJ.....81..245E, doi:10.1086/111879.
- 1 2 3 4 Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191.
- 1 2 Entry, WDS identifier 02037+2556, Sixth Catalog of Orbits of Visual Binary Stars, William I. Hartkopf & Brian D. Mason, U.S. Naval Observatory. Accessed on line August 21, 2008.
- ↑ "CCDM J02037+2556AB -- Double or multiple star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-18.
External links
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Coordinates: 
02h 03m 39.344s, +25° 56′ 07.70″
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