HD 15524

HD 15524 is a wide binary star^[4] in the northern zodiac constellation of Aries. Located approximately 51.76 parsecs (168.8 ly) away,^[9] the primary, a yellow-white subgiant^[5] or main sequence^[6] star has an apparent magnitude of 5.97, meaning that it can be viewed with the naked eye under good conditions. The secondary, separated from the primary by 12.4 arcseconds, has an apparent magnitude of 10.4.^[4]

HD 15524

Observation data Epoch J2000      Equinox J2000
Constellation	Aries[1]
Right ascension	02h 30m 32.3544s[2]
Declination	+25° 14′ 06.107″[2]
Apparent magnitude (V)	5.90[3] (5.97 / 10.4)[4]
Characteristics
HD 15524 A
Spectral type	F6 IV[5] or F4 V[6]
B−V color index	0.412±0.006[7]
Astrometry
Radial velocity (Rv)	−9.60±1.5[8] km/s
Proper motion (μ)	RA: +62.407±0.027[2] mas/yr Dec.: −75.827±0.026[2] mas/yr
Parallax (π)	19.32±0.44 mas[9]
Distance	169 ± 4 ly (52 ± 1 pc)
Absolute magnitude (MV)	2.44[7]
Details
HD 15524 A
Mass	1.31[10] M☉
Luminosity	10.01[1] L☉
Surface gravity (log g)	3.92±0.14[10] cgs
Temperature	6,665±227[10] K
Metallicity [Fe/H]	0.11±0.05[11] dex
Rotational velocity (v sin i)	59.8±3.0[7] km/s
Age	1.633[10] Gyr
Other designations
BD+24°358, FK5 2171, HD 15524, HIP 11670, HR 728, SAO 75407[3]
Database references
SIMBAD	data

This system is the likely source of X-ray emission coming from these coordinates.^[12]