HD 135344
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lupus |
| A | |
| Right ascension | 15h 15m 48.9463s |
| Declination | −37° 08′ 55.731″ |
| Apparent magnitude (V) | 7.76 |
| B | |
| Right ascension | 15h 15m 48.4460s |
| Declination | −37° 09′ 16.024″ |
| Apparent magnitude (V) | 8.708 |
| Characteristics | |
| A | |
| Evolutionary stage | main sequence |
| Spectral type | A0V |
| B | |
| Evolutionary stage | main sequence |
| Spectral type | F8V |
| Astrometry | |
| A | |
| Radial velocity (Rv) | 29.31±3.29 km/s |
| Proper motion (μ) | RA: −18.738 mas/yr Dec.: −24.008 mas/yr |
| Parallax (π) | 7.4105±0.0403 mas |
| Distance | 440 ± 2 ly (134.9 ± 0.7 pc) |
| B | |
| Radial velocity (Rv) | −5.34±1.48 km/s |
| Proper motion (μ) | RA: −19.210 mas/yr Dec.: −23.268 mas/yr |
| Parallax (π) | 7.4074±0.0240 mas |
| Distance | 440 ± 1 ly (135.0 ± 0.4 pc) |
| Details | |
| A | |
| Mass | 2.32 M☉ |
| Radius | 1.50±0.01 R☉ |
| Luminosity | 16.6±0.4 L☉ |
| Surface gravity (log g) | 4.1±0.1 cgs |
| Temperature | 9540±100 K |
| Metallicity [Fe/H] | 0.10 dex |
| B | |
| Mass | 1.5 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 6.4 L☉ |
| Surface gravity (log g) | 3.80 cgs |
| Temperature | 6,313 K |
| Age | 10.5 Myr |
| Other designations | |
| CD−36 10010, HD 135344 | |
| A: CPD−36 6758, SAO 206463, TYC 7324-1671-1 | |
| B: CPD−36 6759, SAO 206462, TYC 7324-1676-1 | |
| Database references | |
| SIMBAD | A |
| B | |
HD 135344 is a young binary star system about 440 light-years away from Earth in the constellation Lupus. The primary star hosts a directly imaged gas giant planet, while the secondary star, also known as SAO 206462, is surrounded by a circumstellar disk of gas with clearly defined spiral arms and has three planet candidates.