109 Virginis information

109 Virginis
Observation data; Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Virgo
Right ascension	14h 46m 14.92536s
Declination	+01° 53′ 34.3845″
Apparent magnitude (V)	+3.72
Characteristics
Spectral type	A0 V
B−V color index	−0.005±0.006
Variable type	None
Astrometry
Radial velocity (Rv)	−6.1±2.7 km/s
Proper motion (μ)	RA: −114.03 mas/yr ; Dec.: −22.13 mas/yr
Parallax (π)	24.25 ± 0.18 mas
Distance	134.5 ± 1.0 ly ; (41.2 ± 0.3 pc)
Details
Mass	2.58±0.02 M☉
Radius	2.7 R☉
Luminosity	62.8+1.8; −1.7 L☉
Surface gravity (log g)	3.83±0.12 cgs
Temperature	9683+112; −111 K
Metallicity [Fe/H]	−0.41±0.14 dex
Rotational velocity (v sin i)	285 km/s
Age	320 Myr
Other designations
	109 Vir, BD+02°2862, FK5 547, HD 130109, HIP 72220, HR 5511, SAO 120648
Database references
SIMBAD	data

109 Virginis is a single,^[9] white-hued star in the zodiac constellation of Virgo, located some 134.5 light years away from the Sun. It is the seventh-brightest member of this constellation, having an apparent visual magnitude of +3.72.^[2]

This is an A-type main-sequence star with a stellar classification of A0 V,^[3] and is a suspected chemically peculiar star.^[6]^[11] However, Abt and Morrell (1995) gave it a class of A0 IIInn,^[12] matching a giant star with "nebulous" lines. It is spinning rapidly with a projected rotational velocity of 285 km/s,^[6] which is giving the star an oblate shape with an equatorial bulge that is an estimated 31% larger than the polar radius.^[13] The star is 320^[9] million years old with 2.58^[6] times the mass of the Sun and about 2.7^[7] times the Sun's radius. It is radiating 63^[6] times the Sun's luminosity from its photosphere at an effective temperature of 9,683 K.^[6]

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^ ^a ^b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ Cite error: The named reference Adelman1997 was invoked but never defined (see the help page).
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^ ^a ^b Cite error: The named reference Wu2011 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference DeRosa2014 was invoked but never defined (see the help page).
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^ Cite error: The named reference Renson2009 was invoked but never defined (see the help page).
^ Cite error: The named reference abt1995 was invoked but never defined (see the help page).
^ Cite error: The named reference belle2012 was invoked but never defined (see the help page).

[gaia_dr2-1] Cite error: The named reference gaia_dr2 was invoked but never defined (see the help page).

[aass85_3_1015-2] Cite error: The named reference aass85_3_1015 was invoked but never defined (see the help page).

[Cowley1969-3] Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).

[Anderson2012-4] Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).

[Adelman1997-5] Cite error: The named reference Adelman1997 was invoked but never defined (see the help page).

[Zorec2012-6] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).

[CADARS-7] Cite error: The named reference CADARS was invoked but never defined (see the help page).

[Wu2011-8] Cite error: The named reference Wu2011 was invoked but never defined (see the help page).

[DeRosa2014-9] Cite error: The named reference DeRosa2014 was invoked but never defined (see the help page).

[SIMBAD-10] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[Renson2009-11] Cite error: The named reference Renson2009 was invoked but never defined (see the help page).

[abt1995-12] Cite error: The named reference abt1995 was invoked but never defined (see the help page).

[belle2012-13] Cite error: The named reference belle2012 was invoked but never defined (see the help page).

Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Virgo
Right ascension	14^h 46^m 14.92536^s^[1]
Declination	+01° 53′ 34.3845″^[1]
Apparent magnitude (V)	+3.72^[2]
Characteristics
Spectral type	A0 V^[3]
B−V color index	−0.005±0.006^[4]
Variable type	None^[5]
Astrometry

Radial velocity (R_v)	−6.1±2.7^[4] km/s
Proper motion (μ)	RA: −114.03^[1] mas/yr Dec.: −22.13^[1] mas/yr
Parallax (π)	24.25 ± 0.18 mas^[1]
Distance	134.5 ± 1.0 ly (41.2 ± 0.3 pc)

Details

Mass	2.58±0.02^[6] `M`_☉
Radius	2.7^[7] `R`_☉
Luminosity	62.8+1.8 −1.7^[6] `L`_☉
Surface gravity (log g)	3.83±0.12^[8] cgs
Temperature	9683+112 −111^[6] K
Metallicity [Fe/H]	−0.41±0.14^[8] dex
Rotational velocity (v sin i)	285^[6] km/s
Age	320^[9] Myr

Other designations
109 Vir, BD+02°2862, FK5 547, HD 130109, HIP 72220, HR 5511, SAO 120648^[10]
Database references
SIMBAD	data

109 Virginis information

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109 Virginis

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