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 yearsaway, the object is approaching the Solar System with a heliocentric radial velocity of −15 km/s.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 16h 57m 01.0485s |
| Declination | −71° 06′ 41.9212″ |
| Apparent magnitude (V) | 6.48±0.01 |
| Characteristics | |
| Spectral type | A5 IV/V |
| U−B color index | +0.15 |
| B−V color index | +0.26 |
| Astrometry | |
| Radial velocity (Rv) | −15.0±0.5 km/s |
| Proper motion (μ) | RA: −8.941 mas/yr Dec.: −36.107 mas/yr |
| Parallax (π) | 3.2415 ± 0.0204 mas |
| Distance | 1,006 ± 6 ly (308 ± 2 pc) |
| Absolute magnitude (MV) | −0.95 |
| Details | |
| Mass | 2.2 M☉ |
| Radius | 10.01 R☉ |
| Luminosity | 193 L☉ |
| Surface gravity (log g) | 2.85 cgs |
| Temperature | 7,155 K |
| Metallicity [Fe/H] | −1.49 dex |
| Rotational velocity (v sin i) | 61.5±2.5 km/s |
| Age | 179 Myr |
| Other designations | |
| 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).