HD 24141

HD 24141, also known as HR 1192, is a star located in the northern constellation Camelopardalis, the giraffe. It is faintly visible to the naked eye as a white-hued point of light with an apparent magnitude of 5.79.^[3] The object is located relatively close at a distance of 176 light-years based on Gaia DR3 parallax measurements^[2] and it is slowly drifting closer with a heliocentric radial velocity of −0.2 km/s.^[7] At its current distance, HD 24141's brightness is diminished by 0.17 magnitudes due to interstellar extinction^[16] and it has an absolute magnitude of +2.28.^[1]

HD 24141

Location of HD 24141 on the map (circled)
Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Camelopardalis[1]
Right ascension	03h 53m 43.28625s[2]
Declination	+57° 58′ 30.5263″[2]
Apparent magnitude (V)	5.79±0.01[3]
Characteristics
Evolutionary stage	main sequence[2]
Spectral type	kA3hF0mF0[4] or A7 V[5]
U−B color index	+0.11[6]
B−V color index	+0.18[6]
Astrometry
Radial velocity (Rv)	−0.2±0.6[7] km/s
Proper motion (μ)	RA: +86.826 mas/yr[2] Dec.: −91.295 mas/yr[2]
Parallax (π)	18.5633±0.0352 mas[2]
Distance	175.7 ± 0.3 ly (53.9 ± 0.1 pc)
Absolute magnitude (MV)	+2.28[1]
Position (relative to HD 24141A)
Component	HD 24141B
Epoch of observation	J2000.0
Angular distance	1.02″ [8]
Position angle	69° [9]
Projected separation	52.3 AU [8]
Details
Mass	1.92[10] M☉
Radius	1.72±0.09[11] R☉
Luminosity	10.66±0.04[2] L☉
Surface gravity (log g)	4.28+0.08 −0.07[12] cgs
Temperature	8,518±290[10] K
Metallicity [Fe/H]	−0.02[13] dex
Rotational velocity (v sin i)	53±10[14] km/s
Age	15[10] Myr
Other designations
AG+57°437, BD+57°752, FK5 1105, GC 4668, HD 24141, HIP 18217, HR 1192, SAO 24276, WDS J03537+5759AB[15]
Database references
SIMBAD	data

It is not entirely certain whether HD 24141 is an Am star or not.^[17] One stellar classification is kA3hF0mF0,^[4] which indicates that it is an Am star with the calcium K-lines of an A3 star and the hydrogen and metallic lines of a F0 star. However, Abt & Levy (1985) gave a class of A7 V,^[5] indicating that it is instead an ordinary A-type main-sequence star. HD 24141 has 1.92 times the mass of the Sun and it is estimated to be only 15 million years old.^[10] It radiates 10.66 times the luminosity of the Sun^[2] from its photosphere at an effective temperature of 8,518 K.^[10] These parameters correspond to a radius that is 72% larger than the Sun's.^[11] HD 24141 has a near-solar metallicity at [Fe/H] = −0.02^[13] and it spins modestly with a projected rotational velocity of 53 km/s.^[14]

Most sources generally agree that HD 24141 is a solitary star.^[18][5][19] A 2014 multiplicity survey found a 7th magnitude companion with a mass of 0.77 M_☉^[8] located 1.02" away from the star^[8] along a position angle of 69°. Another 15th magnitude companion designated as C is located 1216″ away along a position angle of 187°.^[20] The object appears to share the same proper motion as HD 24141,^[9] but the Gaia DR3 parallax is different and it is considered very unlikely that the two are physically associated.^[21]