Epsilon Corvi

Epsilon Corvi (ε Crv, ε Corvi) is a star in the southern constellation of Corvus. It has the traditional name Minkar /ˈmɪŋkɑːr/, from Arabic منقار minqar meaning "beak [of the crow]"^[9] The apparent visual magnitude is +3.0^[2] and it is located at a distance of 318 light-years (97 parsecs) from Earth.^[1]

ε Corvi

Location of ε Corvi (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Corvus
Right ascension	12h 10m 07.48058s[1]
Declination	−22° 37′ 11.1620″[1]
Apparent magnitude (V)	+3.024[2]
Characteristics
Spectral type	K2 III[3]
U−B color index	+1.458[2]
B−V color index	+1.318[2]
Astrometry
Radial velocity (Rv)	+4.9[4] km/s
Proper motion (μ)	RA: −71.74 mas/yr[1] Dec.: +10.25 mas/yr[1]
Parallax (π)	10.26±0.16 mas[1]
Distance	318 ± 5 ly (97 ± 2 pc)
Absolute magnitude (MV)	−1.82+0.15 −0.14[5]
Details[6]
Mass	2.97±0.43 M☉
Radius	56.65±2.24 R☉
Luminosity	930±54 L☉
Surface gravity (log g)	1.42±0.10 cgs
Temperature	4,239±57 K
Metallicity [Fe/H]	−0.18±0.10 dex
Rotational velocity (v sin i)	1.0[7] km/s
Age	590±210 Myr
Other designations
2 Crv, BD−21°3487, FK5 453, HD 105707, HIP 59316, HR 4630, SAO 180531[8]
Database references
SIMBAD	data

In Chinese, 軫宿 (Zhěn Sù), meaning Chariot (asterism), refers to an asterism consisting of ε Corvi, γ Corvi, δ Corvi and β Corvi.^[10] Consequently, ε Corvi itself is known as 軫宿二 (Zhěn Sù èr, English: the Second Star of Chariot.).^[11]

Epsilon Corvi is a red giant with a stellar classification of K2 III, having consumed the hydrogen at its core and evolved away from the main sequence. It has about three times the Sun's mass, while having expanded to 57 times the Sun's radius. The photosphere irradiates 930 times more energy than the Sun and has an effective temperature of 4239 K,^[6] giving it an orange hue that is characteristic of a K-type star.^[12] It spent much of its life as a main sequence star of spectral type B5V.^[13]