1RXS J160929.1−210524
1RXS J160929.1−210524 image taken with MIRI. The companion is the faint object above the star. Credit: NASA/ESA/CSA JWST; Ya-Lin Wu et al.; Processing: Meli_thev | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 16h 09m 30.3075s |
| Declination | −21° 04′ 58.944″ |
| Characteristics | |
| Spectral type | K7V |
| Variable type | T Tauri star |
| Astrometry | |
| Proper motion (μ) | RA: −10.195(22) mas/yr Dec.: −23.307(15) mas/yr |
| Parallax (π) | 7.2444±0.0176 mas |
| Distance | 450 ± 1 ly (138.0 ± 0.3 pc) |
| Details | |
| Mass | 0.85+0.20 −0.10 M☉ |
| Radius | 1.35 R☉ |
| Temperature | 4060+300 −200 K |
| Age | 5 million years |
| Other designations | |
| 2MASS J16093030-2104589, GSC 06213-01358, 1RXS J160929.1−210524 | |
| Database references | |
| SIMBAD | data |
1RXS J160929.1−210524 (also known as GSC 6213-1358 or PZ99 J160930.3−210459) is a pre-main-sequence star approximately 450 light-years away in the constellation of Scorpius.
The star was identified as a member of the Upper Scorpius subgroup of the Scorpius–Centaurus association by Thomas Preibisch and coauthors in 1998, and originally assigned an age of 5 million years old based on its group membership. A more recent analysis of the ages of the stars in the Upper Scorpius group pegs its average age at 11 million years.