| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Corona Australis |
| Right ascension | 19h 01m 58.790s[2] |
| Declination | −36° 57′ 50.33″[2] |
| Apparent magnitude (V) | 11.67[3] |
| Characteristics | |
| Spectral type | F0[4] |
| Variable type | Herbig Ae/Be star[4] |
| Astrometry | |
| Radial velocity (Rv) | 1.1[5] km/s |
| Proper motion (μ) | RA: 5.3 ± 4.7[6] mas/yr Dec.: −24.9 ± 4.7[6] mas/yr |
| Distance | 502.3 ly (154.0[5] pc) |
| Details | |
| Luminosity | 28.8[5] L☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
T Coronae Australis (T CrA), is a young star in the constellation Corona Australis. It is a member of the Corona Australis star-forming region, which is located about 502 light-years (154.0 pc)[5] from the Sun. It has a spectral type of F0e and is surrounded by a circumstellar disk,[4] seen edge-on.[5]
Johann Friedrich Julius Schmidt discovered that the star is a variable star, in 1876. It appeared with its variable star designation in Annie Jump Cannon's 1907 work Second Catalogue of Variable Stars.[8]
- ^ Cite error: The named reference
Bellinghamwas invoked but never defined (see the help page). - ^ a b Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ a b c Acke, B.; van den Ancker, M. E. (2004). "ISO spectroscopy of disks around Herbig Ae/Be stars". Astronomy and Astrophysics. 426: 151–170. arXiv:astro-ph/0406050. Bibcode:2004A&A...426..151A. doi:10.1051/0004-6361:20040400. S2CID 10317581.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ a b c d e Pascucci, Ilaria; Banzatti, Andrea; Gorti, Uma; Fang, Min; Pontoppidan, Klaus; Alexander, Richard; Ballabio, Giulia; Edwards, Suzan; Salyk, Colette; Sacco, Germano; Flaccomio, Ettore; Blake, Geoffrey A.; Carmona, Andres; Hall, Cassandra; Kamp, Inga; Käufl, Hans Ulrich; Meeus, Gwendolyn; Meyer, Michael; Pauly, Tyler; Steendam, Simon; Sterzik, Michael (2020). "The Evolution of Disk Winds from a Combined Study of Optical and Infrared Forbidden Lines". The Astrophysical Journal. 903 (2): 78. arXiv:2009.09114. Bibcode:2020ApJ...903...78P. doi:10.3847/1538-4357/abba3c. S2CID 221819501.
- ^ a b Zacharias, N.; Urban, S. E.; Zacharias, M. I.; Wycoff, G. L.; Hall, D. M.; Germain, M. E.; Holdenried, E. R.; Winter, L. (2003). "UCAC2 Catalogue (Zacharias+ 2004)". Vizier Online Data Catalog. Bibcode:2003yCat.1289....0Z.
- ^ "T CrA". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-03-21.
- ^ Cite error: The named reference
Cannon1907was invoked but never defined (see the help page).