HD 152010

HD 152010 is a solitary star in the southern circumpolar constellation Apus. It has an apparent magnitude of 6.48, placing it near the max visibility for the naked eye. Located 1,006 light years^[1]away, the object is approaching the Solar System with a heliocentric radial velocity of −15 km/s.^[5]

HD 152010

Observation data Epoch J2000      Equinox J2000
Constellation	Apus
Right ascension	16h 57m 01.0485s[1]
Declination	−71° 06′ 41.921″[1]
Apparent magnitude (V)	6.48±0.01[2]
Characteristics
Spectral type	A5 IV/V[3]
U−B color index	+0.15[4]
B−V color index	+0.26[4]
Astrometry
Radial velocity (Rv)	−15.0±0.5[5] km/s
Proper motion (μ)	RA: −8.941[1] mas/yr Dec.: −36.107[1] mas/yr
Parallax (π)	3.2415±0.0204 mas[1]
Distance	1,006 ± 6 ly (308 ± 2 pc)
Absolute magnitude (MV)	−0.95[6]
Details
Mass	2.2[7] M☉
Radius	10.01[8] R☉
Luminosity	193[8] L☉
Surface gravity (log g)	2.85[7] cgs
Temperature	7,155[7] K
Metallicity [Fe/H]	−1.49[7] dex
Rotational velocity (v sin i)	61.5±2.5[9] km/s
Age	179[10] Myr
Other designations
50 G. Apodis, CD−70°1475, CPD−70°2326, GC 22763, HD 152010, HIP 82944, SAO 257446, WDS J16570-7107AB
Database references
SIMBAD	data

This A-type star has either luminosity class intermediate between a subgiant and a main sequence star. At present it has 2.2 times the mass of the Sun but has expanded to 10 times its diameter. It shines at 193 L_☉ from its enlarged photosphere at an effective temperature of 7,155 K, giving it a white glow. HD 152010 is 179 million years old − 2.1% past the main sequence − and spins quickly with a projected rotational velocity of 61.5 km/s. There is a 12th magnitude companion star at an angular separation of 2.9″ along a position angle of 162° (as of 2016).^[11]