14 Arietis

14 Arietis
Observation data
Epoch J2000      Equinox J2000
Constellation Aries
Right ascension 02h 09m 25.3363s[1]
Declination +25° 56′ 23.612″[1]
Apparent magnitude (V) 4.98[2]
Characteristics
Spectral type F2 III[3]
U−B color index +0.15[2]
B−V color index +0.33[2]
Astrometry
Radial velocity (Rv)–1.21[4] km/s
Proper motion (μ) RA: +70.46[1] mas/yr
Dec.: -34.99[1] mas/yr
Parallax (π)11.30 ± 1.07 mas[1]
Distance290 ± 30 ly
(88 ± 8 pc)
Absolute magnitude (MV)0.26[5]
Details
Radius4[4] R☉
Luminosity32[4] L☉
Surface gravity (log g)3.2[4] cgs
Temperature6,761[4] K
Rotational velocity (v sin i)139.6[4] km/s
Other designations
BD+25°355, FK5 1089,HD 13174, HIP 10053, HR 623, SAO 75171.[6]
Database references
SIMBADdata

14 Arietis (abbreviated 14 Ari) is a star[7] in the constellation of Aries. 14 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 4.98,[2] which means it is visible to the naked eye. Based upon a measured annual parallax shift of 11.30 mas,[1] is it located at a distance of approximately 290 light-years (89 parsecs), give or take a 30 light-year margin of error.

This is an astrometric binary system.[7] The primary has a stellar classification of F2 III,[3] suggesting that it is a giant star. Despite being an evolved star with four[4] times the radius of the Sun, it is spinning rapidly with a projected rotational velocity of 139.6 km/s.[4] This is causing a pronounced equatorial bulge, with the radius of the star along the equator being 24% greater than the radius at the poles.[8] The star shines at 32[4] times the luminosity of the Sun, with this energy being radiated from its outer atmosphere at an effective temperature of 6,761 K.[4] This heat gives it the yellow-white hued glow of an F-type star.[9]

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  2. ^ a b c d Cite error: The named reference apj149_55 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference msom3 was invoked but never defined (see the help page).
  4. ^ a b c d e f g h i j Cite error: The named reference aj135_1_209 was invoked but never defined (see the help page).
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  7. ^ a b Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference aar20_1_51 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).