| 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 mas [1] |
| 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 | |
| Database references | |
| SIMBAD | data |
10 Arietis is a binary star [6] 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. [2] 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. [3]
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 ″. [4] The magnitude 5.92 [6] primary, designated component A, is an aging F-type subgiant star with a stellar classification of F8 IV. [2] The secondary star, component B, is a magnitude 7.95 [6] F-type main-sequence star with a stellar classification of F9 V. [2] 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. [7]
References
- ^ a b c d e 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.
- ^ a b c d e Edwards, T. W. (April 1976), "MK classification for visual binary components", Astronomical Journal, 81: 245–249, Bibcode: 1976AJ.....81..245E, doi: 10.1086/111879.
- ^ a b c d e 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.
- ^ a b 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.
- ^ a b c 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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