3 Corvi

3 Corvi
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Corvus
Right ascension 12h 11m 03.83987s[1]
Declination −23° 36′ 08.7221″[1]
Apparent magnitude (V) 5.45[2]
Characteristics
Evolutionary stage main sequence[3]
Spectral type A1 V[4]
B−V color index 0.055±0.004[2]
Astrometry
Radial velocity (Rv)+14.41±1.09[5] km/s
Proper motion (μ) RA: −66.853[1] mas/yr
Dec.: −19.826[1] mas/yr
Parallax (π)17.0039 ± 0.1918 mas[1]
Distance192 ± 2 ly
(58.8 ± 0.7 pc)
Absolute magnitude (MV)1.61[2]
Details[5]
Mass2.14[6] M☉
Radius1.87[7] R☉
Luminosity9.55+1.17
−1.04 L☉
Surface gravity (log g)4.12±0.22 cgs
Temperature9,671±329[6] K
Metallicity [Fe/H]+0.17±0.41 dex
Rotational velocity (v sin i)130 km/s
Age907.37+92.96
−899.21 Myr
Other designations
3 Crv, BD22°3305, HD 105850, HIP 59394, HR 4635, SAO 180546[8]
Database references
SIMBADdata

3 Corvi is a single[9] star in the southern constellation of Corvus, located 192 light years away from the Sun.[1] It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.45.[2] This object is moving further from the Earth with a heliocentric radial velocity of +14 km/s.[5]

This is an A-type main-sequence star[3] with a stellar classification of A1 V.[4] It has 2.14[6] times the mass of the Sun and 1.87[7] times the Sun's radius. The star is around 900 million years old with a high rate of rotation, showing a projected rotational velocity of 130 km/s.[5] It is radiating ten[5] times the luminosity of the Sun from its photosphere at an effective temperature of 9,671 K.[6] An infrared excess has been detected, suggesting that a debris disk with a temperature of 150 K is orbiting 14.7 AU from the host star.[7]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference zorec2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference Iglesias2018 was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference David2015 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Cotten2016 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference derosa2014 was invoked but never defined (see the help page).