Binary star in the constellation Aries
! style="text-align: center; background-color: #FFFFC0;" colspan="2" | Observation dataEpoch J2000.0
       Equinox J2000.0 (ICRS)
! style="text-align:left" | Constellation
! style="text-align:left" | Right ascension
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! style="text-align:left" | Apparent magnitude (V)
! style="background-color: #FFFFC0; text-align: center;" colspan="2"| Characteristics
! style="text-align:left" | Spectral type
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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 . 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 along a position angle of 150°, as of 2001.
References.
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External links.
 ;indicator name="01-sky-coordinates" ; ;templatestyles src="Template:Sky/styles.css" / ;Coordinates: &amp;de=25.935472222222224&amp;zoom=&amp;show_grid=1&amp;show_constellation_lines=1&amp;show_constellation_boundaries=1&amp;show_const_names=1&amp;show_galaxies=1&amp;img_source=IMG_all 02h 03m 39.344s, +25° 56′ 07.70″ ;/indicator ;