Mu Virginis: Difference between revisions
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'''Mu Virginis''', [[Romanization of Greek|Latinized]] from μ Virginis, is a [[star]] in the [[zodiac]] [[constellation]] of [[Virgo (constellation)|Virgo]]. It was listed in the ''Calendarium'' of [[Al Achsasi al Mouakket]] as ''rijl al-‘awwā’'', Arabic رجل العواء, meaning "The foot of the barking (dog)".<ref name=Allen1963/> With an [[apparent visual magnitude]] of 3.88,<ref name=Mermilliod1986/> it is bright enough to be seen with the naked eye. The position of the star near the [[celestial equator]] means it is visible from most of the [[Earth]]. Based upon [[stellar parallax|parallax]] measurements, Mu Virginis is located some 59.6 [[light-year]]s from the [[Sun]]. | '''Mu Virginis''', [[Romanization of Greek|Latinized]] from μ Virginis, is a [[star]] in the [[zodiac]] [[constellation]] of [[Virgo (constellation)|Virgo]]. It was listed in the ''Calendarium'' of [[Al Achsasi al Mouakket]] as ''rijl al-‘awwā’'', Arabic رجل العواء, meaning "The foot of the barking (dog)".<ref name=Allen1963/> With an [[apparent visual magnitude]] of 3.88,<ref name=Mermilliod1986/> it is bright enough to be seen with the naked eye. The position of the star near the [[celestial equator]] means it is visible from most of the [[Earth]]. Based upon [[stellar parallax|parallax]] measurements, Mu Virginis is located some 59.6 [[light-year]]s from the [[Sun]]. | ||
Mu Virginis is an [[F-type main-sequence star]] with a [[stellar classification]] of F2 V,<ref name=Gray2006/> although it does show some evidence of being a more [[stellar evolution|evolved star]].<ref name=Rachford2009/> It has an [[effective temperature]] of 6,751<ref name=Gray2006/> K in its [[stellar atmosphere|outer atmosphere]].<ref name=Gray2006/> The estimated age of the star is 1.5 billion years, and it has a relatively high 47.0<ref name=aaa493_3_1099/> km/s [[projected rotational velocity]]. A 1990 study of the star gave it a [[giant star]] classification, and modeled it with 1.7 times the mass of the Sun, 2.1 times the Sun's radius, and shining with 9.8 times the [[Sun's luminosity]].<ref name=aass85_3_1015/> | |||
Past observations of this star show some indications of short-term [[chromosphere|chromospheric]] variability as well as radial velocity variations.<ref name=Rachford2009/> It has a candidate [[common proper motion]] companion at a projected separation of 770 [[Astronomical Unit|AU]]. This object has a [[J band (infrared)|J band]] magnitude of 10.72.<ref name=Chini2014/> | Past observations of this star show some indications of short-term [[chromosphere|chromospheric]] variability as well as radial velocity variations.<ref name=Rachford2009/> It has a candidate [[common proper motion]] companion at a projected separation of 770 [[Astronomical Unit|AU]]. This object has a [[J band (infrared)|J band]] magnitude of 10.72.<ref name=Chini2014/> | ||
Latest revision as of 05:42, 28 June 2025
Template:Location mark Location of μ Virginis (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 3.88[2][3] |
| Characteristics | |
| Spectral type | F2 V[4] |
| U−B Template:Engvar | −0.04[2] |
| B−V Template:Engvar | +0.39[2] |
| Astrometry | |
| Radial velocity (Rv) | Template:Val[5] km/s |
| Proper motion (μ) | RA: +103.28[1] mas/yr Dec.: −318.63[1] mas/yr |
| Parallax (π) | 54.73±0.20 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 2.57[3] |
| Details | |
| Radius | 1.99[6] Template:Solar radius |
| Luminosity | 7.474[7] Template:Solar luminosity |
| Surface gravity (log g) | 4.21[4] cgs |
| Temperature | 6,751[4] K |
| Metallicity [Fe/H] | −0.05[4] dex |
| Rotational velocity (v sin i) | 47.0[8] km/s |
| Age | 1.5[3] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[9] | |
| Database references | |
| SIMBAD | data |
Script error: No such module "Check for unknown parameters".
Mu Virginis, Latinized from μ Virginis, is a star in the zodiac constellation of Virgo. It was listed in the Calendarium of Al Achsasi al Mouakket as rijl al-‘awwā’, Arabic رجل العواء, meaning "The foot of the barking (dog)".[10] With an apparent visual magnitude of 3.88,[2] it is bright enough to be seen with the naked eye. The position of the star near the celestial equator means it is visible from most of the Earth. Based upon parallax measurements, Mu Virginis is located some 59.6 light-years from the Sun.
Mu Virginis is an F-type main-sequence star with a stellar classification of F2 V,[4] although it does show some evidence of being a more evolved star.[6] It has an effective temperature of 6,751[4] K in its outer atmosphere.[4] The estimated age of the star is 1.5 billion years, and it has a relatively high 47.0[8] km/s projected rotational velocity. A 1990 study of the star gave it a giant star classification, and modeled it with 1.7 times the mass of the Sun, 2.1 times the Sun's radius, and shining with 9.8 times the Sun's luminosity.[11]
Past observations of this star show some indications of short-term chromospheric variability as well as radial velocity variations.[6] It has a candidate common proper motion companion at a projected separation of 770 AU. This object has a J band magnitude of 10.72.[12]
References
- ↑ a b c d e Cite error: Invalid
<ref>tag; no text was provided for refs namedvan Leeuwen2007 - ↑ a b c d Cite error: Invalid
<ref>tag; no text was provided for refs namedMermilliod1986 - ↑ a b c Cite error: Invalid
<ref>tag; no text was provided for refs namedcgssn09 - ↑ a b c d e f g Cite error: Invalid
<ref>tag; no text was provided for refs namedGray2006 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedGontcharov2006 - ↑ a b c Cite error: Invalid
<ref>tag; no text was provided for refs namedRachford2009 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedmoro-martin - ↑ a b Cite error: Invalid
<ref>tag; no text was provided for refs namedaaa493_3_1099 - ↑ Cite error: Invalid
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<ref>tag; no text was provided for refs namedAllen1963 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedaass85_3_1015 - ↑ Cite error: Invalid
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