| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aries |
| Right ascension | 02 03 39.34547 |
| Declination | +25° 56′ 07.7129″ |
| Apparent magnitude (V) | 5.63 |
| Characteristics | |
| Spectral type | F8 IV + F9 V |
| Astrometry | |
| Radial velocity (Rv) | +12.9 km/s |
| Proper motion (μ) | RA: +128.01 mas/yr Dec.: +11.19 mas/yr |
| Parallax (π) | 20.53 ± 0.67 mas |
| Distance | 159 ± 5 ly (49 ± 2 pc) |
| Absolute magnitude (MV) | 2.21 |
| Orbit | |
| 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 | –0.10 dex |
| Age | 1.9 Gyr |
| Other designations | |
| 10 Ari, BD+25°341, HD 12558, HIP 9621, HR 605, SAO 75114, ADS 1631, WDS 02037+2556AB | |
| Database references | |
| SIMBAD | data |
10 Arietis is a binary star system in the northern constellation of Aries. 10 Arietis is the Flamsteed designation. It is visible to the naked eye as a dim, yellow-white hued star with a combined apparent visual magnitude of 5.63. Based upon parallax measurements, it is located around 159 light years away from the Sun. The system is receding from the Earth with a heliocentric radial velocity of +12.9 km/s.
The pair orbit each other with a period of approximately 325 years and an eccentricity of 0.59. The semimajor axis of the orbit has an angular size of 1.39″. The magnitude 5.92 primary, designated component A, is an aging F-type subgiant star with a stellar classification of F8 IV. The secondary star, component B, is a magnitude 7.95 F-type main-sequence star with a stellar classification of F9 V. There is a magnitude 13.5 visual companion, designated component C, at an angular separation of 95.30″ along a position angle of 150°, as of 2001.
References
- ^ 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, S2CID 18759600.
- ^ Edwards, T. W. (April 1976), "MK classification for visual binary components", Astronomical Journal, 81: 245–249, Bibcode:1976AJ.....81..245E, doi:10.1086/111879.
- ^ 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, S2CID 118577511.
- ^ Heintz, W. D. (August 1996), "Observations of Double Stars and New Pairs. XVII", Astrophysical Journal Supplement, 105: 475, Bibcode:1996ApJS..105..475H, doi:10.1086/192324
- "10 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-02.
- ^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22
External links
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