| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Scorpius |
| Right ascension | 16h 24m 01.3s |
| Declination | -39° 11′ 34.7″ |
| Apparent magnitude (V) | 5.38 |
| Characteristics | |
| Spectral type | G1VH-04 |
| U−B color index | 0.15[1] |
| B−V color index | 0.62[1] |
| Variable type | suspected |
| Astrometry | |
| Radial velocity (Rv) | 10.1 km/s |
| Proper motion (μ) | RA: 72.64 mas/yr Dec.: 3.41 mas/yr |
| Parallax (π) | 77.69 ± 0.86 mas |
| Distance | 41.96 ly (12.87 pc) |
| Details | |
| Age | 4 × 108[2] years |
| Other designations | |
HD 147513 is the 5th-magnitude star in the constellation of Scorpius. It was first catalogued by Italian astronomer Piazzi in his star catalogue as "XVI 55".[3]
HD 147513 is a yellow dwarf star that is similar to the Sun. However, it is slightly less massive and considerably younger being only 400 million years old. It is approximately 40 light years away from the Earth.
HD 147513 is also known as suspected variable star.[4]
Contents |
In 2002, the Geneva Extrasolar Planet Search Team announced the discovery of an extrasolar planet orbiting the star.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
|---|---|---|---|---|
| b | >1.21 MJ | 1.32 | 528.4 ± 6.3 | 0.26 ± 0.05 |