South Crown Lambda ( Latin: Lambda Coronae Australis , abbr. Λ CrA) is a star in the constellation of Southern Crown . Visible magnitude +5.13 m (visible to the naked eye). A star is a triple star system . The brightest component, λ CrA A , is a white star of the main sequence (spectral class A0 / 1V). Component B is an orange dwarf , has a spectral class of K0V and a visible magnitude of +9.63 m , spaced 29.5 arc seconds from the main component. Component C is located at a distance of 43.3 arc seconds from the main component.
| South Crown Lambda | |||
|---|---|---|---|
| Star | |||
 | |||
| Observational data ( Age J2000.0 ) | |||
| Right ascension | |||
| Declination | |||
| Distance | 205 ± 4 St. years (63 ± 1 pc ) | ||
| Visible magnitude ( V ) | +5.13 | ||
| Constellation | South crown | ||
| Astrometry | |||
| Radial velocity ( R v ) | -26.4 ± 5 km / s | ||
| Own movement (μ) | RA: 1.05 ± 0.37 mas per year Dec: -53.76 ± 0.22 mas per year | ||
| Parallax (π) | 15.89 ± 0.33 mas | ||
| Absolute magnitude (V) | +1.15 | ||
| Specifications | |||
| Spectral class | A2Vn | ||
| physical characteristics | |||
| Temperature | |||
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| Database Information | |||
| SIMBAD | data | ||
Notes
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ Automated spectroscopic abundances of A and F-type stars using echelle spectrographs II. Abundances of 140 AF stars from ELODIE and CORALIE // Astron. Astrophys. - EDP Sciences , 2003. - ISSN 0004-6361 ; 0365-0138 ; 1432-0746 ; 1286-4846 - doi: 10.1051 / 0004-6361: 20021711
Links
- WikiSky Southern Crown Lambda: DSS2 , SDSS , GALEX , IRAS , H α , X-ray , astrophoto , sky map , articles and images
- l Coronae Australis
- lam CrA - Star in double system
- CD-38 13036B - Star in double system
- CD-38 13036C - Star in double system
- South Crown Lambda