 LkCa 15 protoplanetary disk | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 39m 17.796s[1] |
| Declination | +22° 21′ 03.48″[1] |
| Apparent magnitude (V) | +11.91[2] |
| Characteristics | |
| Spectral type | K5V[2] |
| Variable type | T Tauri[1] |
| Astrometry | |
| Proper motion (μ) | RA: 10.572[3] mas/yr Dec.: -17.527[3] mas/yr |
| Parallax (π) | 6.3619 ± 0.0264 mas[3] |
| Distance | 513 ± 2 ly (157.2 ± 0.7 pc) |
| Details | |
| Mass | 0.97 ± 0.03[2] M☉ |
| Radius | 1.2[4] R☉ |
| Luminosity | 1.22[5] L☉ |
| Temperature | 4730[4] K |
| Age | 2[2] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
LkCa 15 is a T Tauri star in the Taurus Molecular Cloud. These types of stars are relatively young pre-main-sequence stars that show irregular variations in brightness.[7] It has a mass that is about 97% of the Sun,[2] an effective temperature of 4370 K,[5] and is slightly cooler than the Sun. Its apparent magnitude is 11.91,[2] meaning it is not visible to the naked eye.
- ^ a b c d "EM* LkCa 15". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ a b c d e f "Notes on LKCA 15 b". Extrasolar Planets Encyclopaedia. 1995. Retrieved 26 December 2016.
- ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b Cite error: The named reference
Currie2019was invoked but never defined (see the help page). - ^ a b Thalmann, C.; Mulders, G. D.; Hodapp, K.; Janson, M.; Grady, C. A.; Min, M.; De Juan Ovelar, M.; Carson, J.; Brandt, T.; Bonnefoy, M.; McElwain, M. W.; Leisenring, J.; Dominik, C.; Henning, T.; Tamura, M. (2014). "The architecture of the Lk Ca 15 transitional disk revealed by high-contrast imaging". Astronomy & Astrophysics. 566: A51. arXiv:1402.1766. Bibcode:2014A&A...566A..51T. doi:10.1051/0004-6361/201322915. S2CID 34485844.
- ^ Cite error: The named reference
Alencarwas invoked but never defined (see the help page). - ^ "Encyclopedia of Science: T Tauri star". Archived from the original on 27 January 2021. Retrieved 17 January 2017.