24 Lyncis

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]

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]
Distance	267 ± 4 ly (82 ± 1 pc)
Absolute magnitude (MV)	0.37[2]
Details
Mass	1.89[4] M☉
Radius	1.7[5] R☉
Luminosity	60.81[2] L☉
Surface gravity (log g)	3.25[4] cgs
Temperature	8,786±299[4] K
Rotational velocity (v sin i)	233[6] km/s
Age	262[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
SIMBAD	data

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]