11 Canis Minoris

11 Canis Minoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Canis Minor
Right ascension 07h 46m 16.20081s[1]
Declination +10° 46′ 05.7055″[1]
Apparent magnitude (V) 5.25[2]
Characteristics
Spectral type A1Vnn[3]
B−V color index 0.018±0.008[2]
Astrometry
Radial velocity (Rv)+28.0±4.2[4] km/s
Proper motion (μ) RA: −29.902[1] mas/yr
Dec.: −25.275[1] mas/yr
Parallax (π)10.4262 ± 0.2007 mas[1]
Distance313 ± 6 ly
(96 ± 2 pc)
Absolute magnitude (MV)0.42[2]
Details
Mass2.23[5] M☉
Radius2.5[6] R☉
Luminosity65.26[2] L☉
Surface gravity (log g)3.60[5] cgs
Temperature9,972±339[5] K
Age149[5] Myr
Other designations
11 CMi, NSV 3724, BD+11°1670, FK5 1201, GC 10463, HD 62832, HIP 37921, HR 3008, SAO 97224[7]
Database references
SIMBADdata

11 Canis Minoris is a single[8] star in the equatorial constellation of Canis Minor,[7] located around 313 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 5.25.[2] This object is moving away from the Earth with a heliocentric radial velocity of +28 km/s,[4] having come to within 157 light-years some 2.35 million years ago.[2]

This is an A-type main-sequence star with a stellar classification of A1Vnn,[3] where the 'n' notation indicates (very) "nebulous" lines due to rapid rotation. However, Gray and Garrison (1987) found a class of A0.5 IVnn,[9] which would instead match an evolving subgiant star. It is a suspected variable star of unknown type.[10] This object is 149[5] million years old with 2.23[5] times the mass of the Sun and about 2.5[6] times the Sun's radius. It is radiating 65[2] times the Sun's luminosity from its photosphere at an effective temperature of 9,972 K.[5]

  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 e f g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference David2015 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference cadars was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Simbad was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Gray1987 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Samus2017 was invoked but never defined (see the help page).