Delta Arietis

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Delta Arietis
Observation data
Epoch J2000
Constellation
(pronunciation)		 Aries
Right ascension 03h 11m 37.8s
Declination +19° 43′ 36″
Apparent magnitude (V) 4.35
Characteristics
Spectral type K2 III
U-B color index 0.87
B-V color index 1.03
Variable type Suspected
Astrometry
Radial velocity (Rv) +24.7 km/s
Proper motion (μ) RA: 154.61 mas/yr
Dec.: -8.39 mas/yr
Parallax (π) 19.44 ± 1.23 mas
Distance 168 ly (51 pc)
Absolute magnitude (MV) 0.79
Other designations
Botein, Botejn, 57 Arietis, HR 951, BD +19°477, HD 19787, SAO 93328, FK5 114, GC 3805, HIP 14838.

Delta Arietis (δ Ari / δ Arietis) is a star in the constellation Aries. It also has the traditional name Botein which is derived from the Arabic buţain, dual of بطن baţn meaning "belly".

Delta Arietis is an orange K-type giant with an apparent magnitude of +4.35. It is approximately 168 light years from Earth and its diameter is 13 times that of the Sun.

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