70 Virginis: Difference between revisions

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{{short description|Star in the constellation Virgo}}
{{short description|Star in the constellation Virgo}}
{{Starbox begin
{{Starbox begin}}
| name = 70 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=70 Virginis
|x=342|y=150
}}
}}
{{Starbox image
| caption = Location of 70 Virginis (circled in red)
| image = [[Image:70 virginis.jpg|250px]]
| caption = 70 Virginis system as rendered in [[Celestia]]
}}
}}
{{Starbox observe
{{Starbox observe
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{{Starbox reference
{{Starbox reference
| Simbad = 70+Vir
| Simbad = 70+Vir
| NSTED = 70+Vir
| NSTED = 70 Vir
| ARICNS = 01056
| ARICNS = 01056
}}
}}
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{{reflist|refs=
{{reflist|refs=


<ref name=Anderson2012>{{citation
<ref name=Anderson2012>{{cite journal
  | title=XHIP: An extended hipparcos compilation
  | title=XHIP: An extended hipparcos compilation
  | last1=Anderson | first1=E. | last2=Francis | first2=Ch.
  | last1=Anderson | first1=E. | last2=Francis | first2=Ch.
Line 88: Line 92:
  | volume=38 | issue=5 | pages=331 | year=2012
  | volume=38 | issue=5 | pages=331 | year=2012
  | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015
  | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015
  | s2cid=119257644 | postscript=. }}</ref>
  | s2cid=119257644 }}</ref>


<ref name="apj771_1_40">{{citation
<ref name="apj771_1_40">{{cite journal
  | display-authors=1
  | display-authors=1
  | last1=Boyajian | first1=Tabetha S. | last2=von Braun | first2=Kaspar
  | last1=Boyajian | first1=Tabetha S. | last2=von Braun | first2=Kaspar
Line 104: Line 108:
  | id=40 | pages=31 | date=July 2013
  | id=40 | pages=31 | date=July 2013
  | arxiv=1306.2974 | doi=10.1088/0004-637X/771/1/40
  | arxiv=1306.2974 | doi=10.1088/0004-637X/771/1/40
  | bibcode=2013ApJ...771...40B | s2cid=14911430 | postscript=.
  | bibcode=2013ApJ...771...40B | s2cid=14911430
}} See Table 3.</ref>
}} See Table 3.</ref>


<ref name="soubiran">{{Citation |last1=Soubiran |first1=C. |last2=Creevey |first2=O. L. |last3=Lagarde |first3=N. |last4=Brouillet |first4=N. |last5=Jofré |first5=P. |last6=Casamiquela |first6=L. |last7=Heiter |first7=U. |last8=Aguilera-Gómez |first8=C. |last9=Vitali |first9=S. |last10=Worley |first10=C. |last11=de Brito Silva |first11=D. |date=2024-02-01 |title=Gaia FGK benchmark stars: Fundamental Teff and log g of the third version |bibcode=2024A&A...682A.145S |journal=Astronomy and Astrophysics |volume=682 |pages=A145 |doi=10.1051/0004-6361/202347136 |arxiv=2310.11302 |issn=0004-6361}} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A%2BA/682/A145&HIP=HIP65721 70 Virginis's database entry] at [[VizieR]].</ref>
<ref name="soubiran">{{cite journal |last1=Soubiran |first1=C. |last2=Creevey |first2=O. L. |last3=Lagarde |first3=N. |last4=Brouillet |first4=N. |last5=Jofré |first5=P. |last6=Casamiquela |first6=L. |last7=Heiter |first7=U. |last8=Aguilera-Gómez |first8=C. |last9=Vitali |first9=S. |last10=Worley |first10=C. |last11=de Brito Silva |first11=D. |date=2024-02-01 |title=Gaia FGK benchmark stars: Fundamental Teff and log g of the third version |bibcode=2024A&A...682A.145S |journal=Astronomy and Astrophysics |volume=682 |pages=A145 |doi=10.1051/0004-6361/202347136 |arxiv=2310.11302 |issn=0004-6361}} [https://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A%2BA/682/A145&HIP=HIP65721 70 Virginis's database entry] at [[VizieR]].</ref>


<ref name="berkeley">{{cite press release | title=Discovery of two new planets -- the second and third within the last three months -- proves they aren't rare in our galaxy | last=Sanders | first=Robert | date=January 17, 1996 | publisher=University of California, Berkeley | url=http://www.berkeley.edu/news/media/releases/96legacy/releases.96/14301.html | access-date=December 22, 2017 }}</ref>
<ref name="berkeley">{{cite press release | title=Discovery of two new planets -- the second and third within the last three months -- proves they aren't rare in our galaxy | last=Sanders | first=Robert | date=January 17, 1996 | publisher=University of California, Berkeley | url=http://www.berkeley.edu/news/media/releases/96legacy/releases.96/14301.html | access-date=December 22, 2017 }}</ref>
<!-- Not in use
<ref name=Eggleton2008>{{citation
| title=A catalogue of multiplicity among bright stellar systems
| last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.
| journal=Monthly Notices of the Royal Astronomical Society
| volume=389 | issue=2 | pages=869 | date=2008
| doi=10.1111/j.1365-2966.2008.13596.x | postscript=.
| bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 }}</ref>
Not in use-->


<ref name="Gaia DR3">{{Cite Gaia DR3|3740176925743994752}}</ref>
<ref name="Gaia DR3">{{Cite Gaia DR3|3740176925743994752}}</ref>
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<ref name="Kane2015">{{cite journal | title=A Comprehensive Characterization of the 70 Virginis Planetary System | last1=Kane | first1=Stephen R. | last2=Boyajian | first2=Tabetha S. | last3=Henry | first3=Gregory W. | last4=Feng | first4=Y. Katherina | last5=Hinkel | first5=Natalie R. | last6=Fischer | first6=Debra A. | last7=Braun | first7=Kaspar von | last8=Howard | first8=Andrew W. | last9=Wright | first9=Jason T. | display-authors=1 | journal=The Astrophysical Journal | volume=806 | issue=1 | at=60 | year=2015 | arxiv=1504.04066 | bibcode=2015ApJ...806...60K | doi=10.1088/0004-637X/806/1/60 | s2cid=42414832 }}</ref>
<ref name="Kane2015">{{cite journal | title=A Comprehensive Characterization of the 70 Virginis Planetary System | last1=Kane | first1=Stephen R. | last2=Boyajian | first2=Tabetha S. | last3=Henry | first3=Gregory W. | last4=Feng | first4=Y. Katherina | last5=Hinkel | first5=Natalie R. | last6=Fischer | first6=Debra A. | last7=Braun | first7=Kaspar von | last8=Howard | first8=Andrew W. | last9=Wright | first9=Jason T. | display-authors=1 | journal=The Astrophysical Journal | volume=806 | issue=1 | at=60 | year=2015 | arxiv=1504.04066 | bibcode=2015ApJ...806...60K | doi=10.1088/0004-637X/806/1/60 | s2cid=42414832 }}</ref>


<ref name=Lepine2005>{{citation
<ref name=Lepine2005>{{cite journal
  | last1=Lépine | first1=Sébastien | last2=Shara | first2=Michael M.
  | last1=Lépine | first1=Sébastien | last2=Shara | first2=Michael M.
  | title=A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)
  | title=A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)
Line 131: Line 125:
  | volume=129 | issue=3 | pages=1483–1522 | date=March 2005
  | volume=129 | issue=3 | pages=1483–1522 | date=March 2005
  | doi=10.1086/427854 | bibcode=2005AJ....129.1483L
  | doi=10.1086/427854 | bibcode=2005AJ....129.1483L
  | arxiv=astro-ph/0412070 | s2cid=2603568 | postscript=. }}</ref>
  | arxiv=astro-ph/0412070 | s2cid=2603568 }}</ref>


<ref name="Marcy1996">{{cite journal | title=A Planetary Companion to 70 Virginis | last1=Marcy | first1=Geoffrey W. | last2=Butler | first2=R. Paul | journal=The Astrophysical Journal Letters | volume=464 | issue=1 | pages=L147–L151 | date=1996 | bibcode=1996ApJ...464L.147M | doi=10.1086/310096 | s2cid=9528214 | doi-access=free }}</ref>
<ref name="Marcy1996">{{cite journal | title=A Planetary Companion to 70 Virginis | last1=Marcy | first1=Geoffrey W. | last2=Butler | first2=R. Paul | journal=The Astrophysical Journal Letters | volume=464 | issue=1 | pages=L147–L151 | date=1996 | bibcode=1996ApJ...464L.147M | doi=10.1086/310096 | s2cid=9528214 | doi-access=free }}</ref>


<ref name="MartínezArnáiz2010">{{citation
<ref name="MartínezArnáiz2010">{{cite journal
  | display-authors=1 | last1=Martínez-Arnáiz | first1=R.
  | display-authors=1 | last1=Martínez-Arnáiz | first1=R.
  | last2=Maldonado | first2=J. | last3=Montes | first3=D.
  | last2=Maldonado | first2=J. | last3=Montes | first3=D.
Line 142: Line 136:
  | journal=Astronomy and Astrophysics
  | journal=Astronomy and Astrophysics
  | volume=520 | page=A79 | date=September 2010
  | volume=520 | page=A79 | date=September 2010
  | doi=10.1051/0004-6361/200913725 | postscript=.
  | doi=10.1051/0004-6361/200913725  
  | bibcode=2010A&A...520A..79M | arxiv=1002.4391 | s2cid=43455849 }}</ref>
  | bibcode=2010A&A...520A..79M | arxiv=1002.4391 | s2cid=43455849 }}</ref>


Latest revision as of 22:03, 16 November 2025

Template:Short description

70 Virginis
Template:Location mark
Location of 70 Virginis (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Virgo
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) +4.97[2]
Characteristics
Spectral type G4 V-IV[3]
U−B Template:Engvar 0.26
B−V Template:Engvar Template:Val[2]
V−R Template:Engvar 0.39
R−I Template:Engvar 0.36
Variable type none
Astrometry
Radial velocity (Rv)Template:Val[2] km/s
Proper motion (μ) RA: Template:Val mas/yr[1]
Dec.: Template:Val mas/yr[1]
Parallax (π)55.2511±0.0779 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)Template:Val[4]
Details
MassTemplate:Val[5] Template:Solar mass
RadiusTemplate:Val[6] Template:Solar radius
LuminosityTemplate:Val[6] Template:Solar luminosity
Surface gravity (log g)Template:Val[6] cgs
TemperatureTemplate:Val[6] K
Metallicity [Fe/H]Template:Val[6] dex
Rotational velocity (v sin i)Template:Val[5] km/s
AgeTemplate:Val[5] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[7]
Database references
SIMBADdata
Exoplanet Archivedata
ARICNSdata

Script error: No such module "Check for unknown parameters".

70 Virginis is a binary[8] star located 59[1] light years from the Sun in the equatorial constellation of Virgo, near the northern constellation border with Coma Berenices. 70 Virginis is its Flamsteed designation. The star is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of +4.97.[2] It is drifting further away with a heliocentric radial velocity of +4.4 km/s[2] and has a high proper motion, traversing the celestial sphere at the rate of 0.621 arc seconds per annum.[9]

This object has a stellar classification of G4 V-IV,[3] being rather unusually bright for a main sequence star of its type and thus may be just starting to evolve into the subgiant phase. It is an estimated 7.9[10] billion years old and is spinning with a projected rotational velocity of 4.8 km/s.[11] The star has 1.09[5] times the mass of the Sun and 1.94 times the Sun's radius. It is radiating 3.05 times the luminosity of the Sun from its photosphere at an effective temperature of 5,473 K.[6] The metallicity – a term astronomers use to describe the abundance of elements heavier than helium – is near solar.[10][6]

In 2011, a star was discovered 2.86 arcseconds away from the primary, and is likely associated with 70 Virginis. Based on its properties, it has a spectral type later than M5V, and has a mass of about 8% that of the Sun.[8] There is also an L-type brown dwarf 42.7 arcseconds away from the primary, but it is unclear whether this is bound to the system.[8]

In 1996, 70 Virginis was discovered to have an extrasolar planet in orbit around it.[12] There is also an orbiting dusty disc with an average temperature of 153 K located at a mean distance of 3.4 AU from the star.[13]

Planetary system

The discovery of the planet around 70 Virginis was announced on January 17, 1996 at the meeting of the American Astronomical Society in San Antonio, Texas. The planet was detected using radial velocity measurements taken with the C. Donald Shane telescope at Lick Observatory. It has an orbital period of 117 days, an eccentricity of 0.4, and a mass at least 7.4 times that of Jupiter.[14][12]

Template:OrbitboxPlanet begin Template:OrbitboxPlanet Template:OrbitboxPlanet disk Template:Orbitbox end

References

Template:Reflist

External links

Template:Virgo Template:Sky

  1. ↑ a b c d e Cite error: Invalid <ref> tag; no text was provided for refs named Gaia DR3
  2. ↑ a b c d e Cite error: Invalid <ref> tag; no text was provided for refs named Anderson2012
  3. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named Strassmeier2017
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named Kane2015
  6. ↑ a b c d e f g Cite error: Invalid <ref> tag; no text was provided for refs named soubiran
  7. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Simbad
  8. ↑ a b c Script error: No such module "Citation/CS1".
  9. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Lepine2005
  10. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named apj771_1_40
  11. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named MartínezArnáiz2010
  12. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named Marcy1996
  13. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Trilling2008
  14. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named berkeley
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