Alpha Corvi information

Alpha Corvi
Observation data; Epoch J2000 Equinox J2000
Constellation	Corvus
Right ascension	12h 08m 24.81652s
Declination	−24° 43′ 43.9504″
Apparent magnitude (V)	4.03
Characteristics
Spectral type	F1 V + M4 V
U−B color index	+0.00
B−V color index	+0.34
Variable type	γ Dor?
Astrometry
Radial velocity (Rv)	+3.0 km/s
Proper motion (μ)	RA: 99.52 mas/yr ; Dec.: −39.19 mas/yr
Parallax (π)	66.95 ± 0.15 mas
Distance	48.7 ± 0.1 ly ; (14.94 ± 0.03 pc)
Absolute magnitude (MV)	3.25
Details
Mass	1.39 M☉
Luminosity	4.91 L☉
Surface gravity (log g)	4.13 ± 0.05 cgs
Temperature	7,041 ± 53 K
Metallicity [Fe/H]	−0.19 ± 0.04 dex
Rotational velocity (v sin i)	16.9 ± 1.5 km/s
Other designations
	Alchiba, Al Minliar al Ghurab, Al Chiba, 1 Crv, CD −24° 10174, GCTP 2796.00, GJ 455.3, HD 105452, HIP 59199, HR 4623, SAO 180505
Database references
SIMBAD	data

Alpha Corvi (α Corvi, abbreviated Alpha Crv, α Crv), also named Alchiba /ˈælkɪbə/,^[12] is an F-type main-sequence star and the fifth-brightest star in the constellation of Corvus. Based on parallax measurements made during the Hipparcos mission, it is approximately 49 light-years from the Sun.^[1]

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^ ^a ^b ^c Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
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^ ^a ^b Cite error: The named reference Fuhrmann 2012 was invoked but never defined (see the help page).
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^ ^a ^b ^c Cite error: The named reference prugniel was invoked but never defined (see the help page).
^ Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ "Naming Stars". IAU.org. Retrieved 16 December 2017.

[vanLeeuwen2007-1] ^ ^a ^b ^c ^d ^e ^f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).

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

[aj132_1_161-3] Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).

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

[Fuhrmann_2012-5] Cite error: The named reference Fuhrmann 2012 was invoked but never defined (see the help page).

[paas21_2_129-6] Cite error: The named reference paas21_2_129 was invoked but never defined (see the help page).

[aaa343_222-7] Cite error: The named reference aaa343_222 was invoked but never defined (see the help page).

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

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

[AmmlerVonEiff2012-10] Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).

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

[IAU-LSN-12] "Naming Stars". IAU.org. Retrieved 16 December 2017.

Observation data Epoch J2000 Equinox J2000
Constellation	Corvus
Right ascension	12^h 08^m 24.81652^s^[1]
Declination	−24° 43′ 43.9504″^[1]
Apparent magnitude (V)	4.03^[2]
Characteristics
Spectral type	F1 V^[3] + M4 V^[4]
U−B color index	+0.00^[2]
B−V color index	+0.34^[2]
Variable type	γ Dor?^[5]
Astrometry

Radial velocity (R_v)	+3.0^[6] km/s
Proper motion (μ)	RA: 99.52^[1] mas/yr Dec.: −39.19^[1] mas/yr
Parallax (π)	66.95 ± 0.15 mas^[1]
Distance	48.7 ± 0.1 ly (14.94 ± 0.03 pc)
Absolute magnitude (M_V)	3.25^[7]

Details

Mass	1.39^[5] `M`_☉
Luminosity	4.91^[8] `L`_☉
Surface gravity (log g)	4.13 ± 0.05^[9] cgs
Temperature	7,041 ± 53^[9] K
Metallicity [Fe/H]	−0.19 ± 0.04^[9] dex
Rotational velocity (v sin i)	16.9 ± 1.5^[10] km/s

Other designations
Alchiba, Al Minliar al Ghurab, Al Chiba, 1 Crv, CD −24° 10174, GCTP 2796.00, GJ 455.3, HD 105452, HIP 59199, HR 4623, SAO 180505^[11]
Database references
SIMBAD	data

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