Upsilon Virginis

{{Starbox begin

| name = υ Virginis

}}

{{Starbox image

| image=

{{Location mark

|image=Virgo constellation map.svg|alt=|float=center|width=280

|label=|position=right

|mark=Red circle.svg|mark_width=10|mark_link=υ Virginis

|x=58|y=504

}}

|caption=Location of υ Virginis (circled)

}}

{{Starbox observe

| epoch = J2000

| constell = Virgo

| ra = {{RA|14|19|32.47974}}

| dec = {{DEC|−02|15|55.8587}}

| appmag_v = 5.27

}}

{{Starbox character

| type = giant

| class = G9 III

| b-v = 1.023

| u-b = +0.81

| variable =

}}

{{Starbox astrometry

| radial_v = {{Val|−26.68|0.16}}

| prop_mo_ra = −118.809

| prop_mo_dec = −71.508

| parallax = 12.1137

| p_error = 0.1301

| parallax_footnote =

| absmag_v = 0.4

}}

{{Starbox detail

| mass = 1.72

| radius = 12

| luminosity = 64.6

| gravity = 2.7

| temperature = 4,753

| metal_fe = −0.22

| rotational_velocity = 3.4

| age_myr = 377

}}

{{Starbox catalog

| names = υ Vir, 102 Virginis, BD−01°2938, FK5 3134, HD 125454, HIP 70012, HR 5366, SAO 139866

}}

{{Starbox reference

| Simbad = ups+Vir

}}

Upsilon Virginis (υ Vir, υ Virginis) is a single star in the zodiac constellation of Virgo. It has an apparent visual magnitude of 5.25, making it faintly visible to the naked eye. According to the Bortle scale, it is visible from backlit suburban skies at night. Based upon a measured annual parallax shift of {{val|12.1|ul=mas}}, it is located roughly {{convert|82.6|pc|ly|order=flip|abbr=off|lk=on}} from the Sun. If the star were at a distance of {{Convert|10|pc|ly|abbr=off|order=flip}}, it would have a magnitude of +0.4 and be the third-brightest star in the night sky.

This star has a stellar classification of G9 III, which indicates it is an evolved G-type giant star. It has an estimated 172% of the Sun's mass and has expanded to 12 times the radius of the Sun, from which it is shining with 64.6 times the solar luminosity. The effective temperature of the star's outer atmosphere is 4,753 K. Based upon its motion through space, there is a 66% chance of being a member of the Hercules stream and a 27% chance it is a thin disk star.

References

{{reflist|refs=

{{citation

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| title=A catalogue of multiplicity among bright stellar systems

| journal=Monthly Notices of the Royal Astronomical Society

| volume=389 | issue=2 | pages=869–879 | date=September 2008

| doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E

| arxiv=0806.2878 | s2cid=14878976 | postscript=. }}

{{citation

| display-authors=1

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| title=Rotational and radial velocities for a sample of 761 HIPPARCOS giants and the role of binarity

| journal=The Astronomical Journal

| volume=135 | issue=1 | pages=209–231 | date=January 2008

| doi=10.1088/0004-6256/135/1/209 | bibcode=2008AJ....135..209M

| postscript=. | doi-access=free }}

{{citation

| display-authors=1

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| last3=Mishenina | first3=T. V. | last4=Kovtyukh | first4=V. V.

| title=Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants

| journal=Astronomy and Astrophysics

| volume=480 | issue=1 | pages=91–101 |date=March 2008

| doi=10.1051/0004-6361:20078788 | bibcode=2008A&A...480...91S

| arxiv=0712.1370 | s2cid=16602121 | postscript=. }}

{{citation

| last1=Luck | first1=R. Earle | last2=Heiter | first2=Ulrike

| title=Giants in the Local Region

| journal=The Astronomical Journal

| volume=133 | issue=6 | pages=2464–2486 | date=June 2007

| doi=10.1086/513194 | bibcode=2007AJ....133.2464L

| postscript=. | doi-access=free }}

{{citation

| display-authors=1 | last1=Takeda | first1=Yoichi

| last2=Sato | first2=Bun'ei | last3=Murata | first3=Daisuke

| title=Stellar Parameters and Elemental Abundances of Late-G Giants

| journal=Publications of the Astronomical Society of Japan

| volume=60 | issue=4 | pages=781–802 | date=August 2008

| bibcode=2008PASJ...60..781T | doi=10.1093/pasj/60.4.781

| arxiv=0805.2434 | postscript=. }}

{{citation

| last1=Mermilliod | first1=J.-C.

| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)

| journal=Catalogue of Eggen's UBV Data

| publisher=SIMBAD | date=1986 | bibcode=1986EgUBV........0M

| postscript=. }}

{{citation

| title=ups Vir -- Variable Star

| work=SIMBAD Astronomical Database

| publisher=Centre de Données astronomiques de Strasbourg

| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=ups+Vir

| access-date=2016-09-18 | postscript=. }}

}}

Category:G-type giants

Category:Virgo (constellation)

Category:Durchmusterung objects