24 Lyncis

24 Lyncis
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
Right ascension 07h 43m 00.41551s[1]
Declination +58° 42′ 37.2950″[1]
Apparent magnitude (V) 4.93[2]
Characteristics
Spectral type A3 IVn[3]
B−V color index +0.104±0.015[2]
Astrometry
Radial velocity (Rv)+9.4±2.3[2] km/s
Proper motion (μ) RA: −37.50[1] mas/yr
Dec.: −52.29[1] mas/yr
Parallax (π)12.22 ± 0.20 mas[1]
Distance267 ± 4 ly
(82 ± 1 pc)
Absolute magnitude (MV)0.37[2]
Details
Mass1.89[4] M☉
Radius1.7[5] R☉
Luminosity60.81[2] L☉
Surface gravity (log g)3.25[4] cgs
Temperature8,786±299[4] K
Rotational velocity (v sin i)233[6] km/s
Age262[4] Myr
Other designations
24 Lyn, BD+59° 1103, FK5 292, HD 61497, HIP 37609, HR 2946, SAO 26474, WDS J07430+5843A[7]
Database references
SIMBADdata

24 Lyncis is a single[8] star in the northern constellation of Lynx. It is visible to the naked eye as a dim, white-hued star with an apparent visual magnitude of 4.96.[1] The distance to this star, as determined from its parallax measurements, is around 274 light years.[1] It is moving further away from the Earth with a heliocentric radial velocity of about +9 km/s.[2]

This object has a stellar classification of A3 IVn,[3] matching an A-type star with a subgiant luminosity class. The 'n' suffix indicates "nebulous" absorption lines due to rapid rotation. The star is spinning with a projected rotational velocity of 233 km/s,[6] giving it an equatorial bulge that is 17% larger than the polar radius.[9] Zorec et al. (2012) estimate the star is actually 88% of the way through its main sequence lifetime.[6] It is 262[4] million years old with 1.89[4] times the mass of the Sun. 24 Lyncis is radiating 61[2] times the luminosity of the Sun from its photosphere at an effective temperature of 8,786 K.[4]

There is a magnitude 11.15 visual companion at an angular separation of 55″ along a position angle of 324°, as of 2010.[10]

  1. ^ a b c d e f g Cite error: The named reference vanLeeuwen2007 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 c d e f g Cite error: The named reference David2015 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference cadars was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  7. ^ 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 vanBelle2012 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference WDSC2014 was invoked but never defined (see the help page).