| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 19m 15.8343s[2] |
| Declination | +29° 06′ 26.9295″[2] |
| Apparent magnitude (V) | 12.12 |
| Characteristics | |
| Evolutionary stage | pre-main-sequence star |
| Spectral type | K5 |
| Apparent magnitude (G) | 11.460[3] |
| Variable type | T Tau |
| Astrometry | |
| Radial velocity (Rv) | 15.76±0.13 km/s |
| Proper motion (μ) | RA: 8.889[3] mas/yr Dec.: -26.011[3] mas/yr |
| Parallax (π) | 7.8494 ± 0.0362 mas[3] |
| Distance | 416 ± 2 ly (127.4 ± 0.6 pc) |
| Details | |
| Mass | 1.24+0.25 −0.32[4] M☉ |
| Radius | 2.0[5] R☉ |
| Luminosity | 0.93[5] L☉ |
| Surface gravity (log g) | 4.32±0.14[6] cgs |
| Temperature | 3640+94 −92[6] K |
| Rotational velocity (v sin i) | 11.4+0.25 −0.55[6] km/s |
| Age | 6±4[4] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
BP Tauri is a young T Tauri star in the constellation of Taurus about 416 light years away, belonging to the Taurus Molecular Cloud.
- ^ Cite error: The named reference
MASTwas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
SIMBADwas invoked but never defined (see the help page). - ^ a b c d Cite error: The named reference
EDR3was invoked but never defined (see the help page). - ^ a b Simon, M.; Dutrey, A.; Guilloteau, S. (2000), "Dynamical Masses of T Tauri Stars and Calibration of Pre–Main-Sequence Evolution", The Astrophysical Journal, 545 (2): 1034–1043, arXiv:astro-ph/0008370, Bibcode:2000ApJ...545.1034S, doi:10.1086/317838, S2CID 18064837
- ^ a b Errico, L.; Lamzin, S. A.; Vittone, A. A. (2001), "UV spectra of T Tauri stars from the HST and IUE satellites: BP Tau", Astronomy & Astrophysics, 377 (2): 557–565, Bibcode:2001A&A...377..557E, doi:10.1051/0004-6361:20011108
- ^ a b c Flores, C.; Connelley, M. S.; Reipurth, B.; Boogert, A. (2019), "Measuring the Magnetic Field of Young Stars Using iSHELL Observations: BP Tau and V347 Aur", The Astrophysical Journal, 882 (2): 75, arXiv:1908.08583, Bibcode:2019ApJ...882...75F, doi:10.3847/1538-4357/ab35d4, S2CID 201645503