HD 152010

HD 152010
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 16h 57m 01.0485s[1]
Declination −71° 06′ 41.9212″[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]
Distance1,006 ± 6 ly
(308 ± 2 pc)
Absolute magnitude (MV)−0.95[6]
Details
Mass2.2[7] M☉
Radius10.01[8] R☉
Luminosity193[8] L☉
Surface gravity (log g)2.85[7] cgs
Temperature7,155[7] K
Metallicity [Fe/H]−1.49[7] dex
Rotational velocity (v sin i)61.5±2.5[9] km/s
Age179[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
SIMBADdata

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]

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]

  1. ^ a b c d e f Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Houk1975 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Moreno1986 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference starhorse was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference McDonald2017 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Ammler2012 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Mason2001 was invoked but never defined (see the help page).