.jpg) K2-25 is the star at the center of this image. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus[1] |
| Right ascension | 04h 13m 05.6131s[2] |
| Declination | +15° 14′ 52.018″[2] |
| Apparent magnitude (V) | 15.881[3] |
| Characteristics | |
| Spectral type | M4.5 V[4] |
| Apparent magnitude (J) | 11.303(21)[5] |
| Apparent magnitude (H) | 10.732(20)[5] |
| Apparent magnitude (K) | 10.444(19)[5] |
| Variable type | Planetary transit[4] |
| Astrometry | |
| Radial velocity (Rv) | 38.64(15)[4] km/s |
| Proper motion (μ) | RA: 122.450(38) mas/yr[2] Dec.: −18.603(26) mas/yr[2] |
| Parallax (π) | 22.3572 ± 0.0308 mas[2] |
| Distance | 145.9 ± 0.2 ly (44.73 ± 0.06 pc) |
| Details[6] | |
| Mass | 0.2634(77) M☉ |
| Radius | 0.2932(93) R☉ |
| Luminosity | 0.00816(29) L☉ |
| Temperature | 3207(58) K |
| Metallicity [Fe/H] | 0.15(3)[4] dex |
| Rotation | 1.87708(66) d[7] |
| Rotational velocity (v sin i) | 7.71(29)[8] km/s |
| Age | 650(70)[8][9] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
K2-25 is a young red dwarf star located in the Hyades cluster. There is a single known Neptune-sized planet in a 3.5 day orbit.
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