epsilon Corvi
{{Short description|Red giant star in the constellation Corvus}}
{{Starbox begin
| name = ε Corvi
}}
{{Starbox image
| image=
{{Location mark
|image=Corvus constellation map.svg
|float=center
|alt=
|label=
|position=right
|width=260
|mark=Red circle.svg
|mark_width=10
|mark_link=ε Corvi
|x=586|y=464
}}
|caption=Location of ε Corvi (circled)
}}
{{Starbox observe
| epoch = J2000
| dec = {{DEC|–22|37|11.1620}}
| constell = Corvus
}}
{{Starbox character
| variable =
}}
{{Starbox astrometry
| prop_mo_ra = –71.74
| prop_mo_dec = +10.25
| parallax = 10.26
| p_error = 0.16
| absmag_v = {{val|-1.82|+0.15|-0.14}}
}}
{{Starbox detail
| mass = {{val|2.97|0.43}}
| radius = {{val|56.65|2.24}}
| luminosity = {{val|930|54}}
| gravity = {{val|1.42|0.10}}
| temperature = {{val|4239|57|fmt=commas}}
| metal_fe = {{val|-0.18|0.10}}
| rotation =
| age_myr = {{val|590|210}}
}}
{{Starbox catalog
| names = 2 Crv, BD−21° 3487, FK5 453, HD 105707, HIP 59316, HR 4630, SAO 180531.
}}
{{Starbox reference
| Simbad = eps+Crv
}}
{{Starbox end}}
Epsilon Corvi (ε Crv, ε Corvi) is a star in the southern constellation of Corvus. It has the traditional name Minkar {{IPAc-en|'|m|I|N|k|ɑr}}, from Arabic منقار minqar meaning "beak [of the crow]"[https://www.wdl.org/en/item/18412/view/1/321/ Al-Sufi, Book Of Fixed Stars, Constellation: The Crow] The apparent visual magnitude is +3.0 and it is located at a distance of {{Convert|318|ly|pc|abbr=off|lk=on}} from Earth.
In Chinese, {{lang|zh|軫宿}} ({{lang|zh-Latn|Zhěn Sù}}), meaning Chariot (asterism), refers to an asterism consisting of ε Corvi, γ Corvi, δ Corvi and β Corvi.{{in lang|zh}} 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, {{ISBN|978-986-7332-25-7}}. Consequently, ε Corvi itself is known as {{lang|zh|軫宿二}} ({{lang|zh-Latn|Zhěn Sù èr}}, {{langx|en|the Second Star of Chariot}}.).{{in lang|zh}} [http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_m.htm 香港太空館 - 研究資源 - 亮星中英對照表] {{webarchive |url=https://web.archive.org/web/20110130063012/http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_m.htm |date=January 30, 2011 }}, Hong Kong Space Museum. Accessed on line November 23, 2010.
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 {{val|4239|u=K}}, giving it an orange hue that is characteristic of a K-type star. It spent much of its life as a main sequence star of spectral type B5V.{{citation | last1=Kaler | first1=James B. (Jim)| url=http://stars.astro.illinois.edu/sow/minkar.html | title=Minkar | work=Stars | publisher=University of Illinois | access-date=12 July 2015}}
References
{{reflist|30em|refs=
{{Citation |last=Reffert |first=Sabine |last2=Bergmann |first2=Christoph |last3=Quirrenbach |first3=Andreas |last4=Trifonov |first4=Trifon |last5=Künstler |first5=Andreas |date=2015-02-01 |title=Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity |journal=Astronomy and Astrophysics |volume=574 |pages=A116 |doi=10.1051/0004-6361/201322360 |bibcode=2015A&A...574A.116R |issn=0004-6361|arxiv=1412.4634 }} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A%2BA/574/A116&HIP=59316 Epsilon Corvi's database entry] at VizieR.
{{citation | title=MINKAR -- Variable Star | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Minkar | access-date=2012-01-23 }}
{{citation |title=The Colour of Stars |date=December 21, 2004 |work=Australia Telescope, Outreach and Education |publisher=Commonwealth Scientific and Industrial Research Organisation |url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |access-date=2012-01-16 |url-status=dead |archive-url=https://web.archive.org/web/20120318151427/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archive-date=2012-03-18 }}
}}
{{Stars of Corvus}}