V1298 Tauri
The planetary system V1298 Tauri Credit: Exoplanet Exploration Program and the Jet Propulsion Laboratory for NASA’s Astrophysics Division | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 05m 19.59121s |
| Declination | +20° 09′ 25.5635″ |
| Apparent magnitude (V) | 10.31 - 10.43 |
| Characteristics | |
| Spectral type | K0-K1.5 |
| Variable type | Irregular |
| Astrometry | |
| Proper motion (μ) | RA: 5.228 ± 0.131 mas/yr Dec.: -16.077 ± 0.048 mas/yr |
| Parallax (π) | 9.2139±0.0593 mas |
| Distance | 354 ± 2 ly (108.5 ± 0.7 pc) |
| Details | |
| Mass | 1.095+0.049 −0.047 M☉ |
| Radius | 1.33+0.04 −0.03 R☉ |
| Luminosity | 0.934 ± 0.044 L☉ |
| Temperature | 4970 ± 120 K |
| Rotation | 2.97+0.03 −0.04 d |
| Age | 23 ± 4 Myr |
| Other designations | |
| K2-309, 2MASS J04051959+2009256, BD+19 656, EPIC 210818897, RX J0405.3+2009, 1SWASP J040519.59+200925.5 | |
| Database references | |
| SIMBAD | data |
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V1298 Tauri is a young (23±4 Myr) weakly-lined T Tauri star that is part of the Taurus-Auriga association in the Taurus Molecular Cloud. Alternatively it is part of a proposed moving group, called Group 29 (or 93 Tau group) that is slightly older. The system has four transiting exoplanets, discovered with the Kepler space telescope in the K2 mission. One of the planets was discovered in August 2019 and the other three were discovered in November 2019 by the same team.