K2-33
K2-33 is an extremely young pre-main-sequence star located about 456 light-years (140 pc) away from the Earth in the constellation of Scorpius. It is known to host one planet, a super-Neptune, named K2-33b. It is also notable for its young age.
Artist's impression of K2-33, with its planet K2-33b transiting across its surface. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 16h 10m 14.7379s |
| Declination | −19° 19′ 09.4072″ |
| Apparent magnitude (V) | 14.3 |
| Characteristics | |
| Evolutionary stage | Pre-main-sequence |
| Spectral type | M2 |
| Astrometry | |
| Proper motion (μ) | RA: −9.709±0.170 mas/yr Dec.: −23.986±0.122 mas/yr |
| Parallax (π) | 7.1530 ± 0.0775 mas |
| Distance | 456 ± 5 ly (140 ± 2 pc) |
| Details | |
| Mass | 0.56 ± 0.09 M☉ |
| Radius | 1.05 ± 0.07 R☉ |
| Temperature | 3540 ± 70 K |
| Metallicity [Fe/H] | 0 dex |
| Age | 9.3 ± 1.2 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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