Gamma Coronae Australis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Corona Australis |
| Right ascension | 19h 06m 25.11014s |
| Declination | −37° 03′ 48.3901″ |
| Apparent magnitude (V) | 4.20 |
| Characteristics | |
| Spectral type | F8V+F8V |
| Astrometry | |
| Radial velocity (Rv) | −51.60 ± 0.3 km/s |
| Proper motion (μ) | RA: 96.74 ± 1.05[1] mas/yr Dec.: −281.71 ± 0.58[1] mas/yr |
| Parallax (π) | 57.79 ± 0.75[1] mas |
| Distance | 56.4 ± 0.7 ly (17.3 ± 0.2 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gamma Coronae Australis (y CrA), is a star located in the constellation Corona Australis. Gamma Coronae Australis is also known as HR 7226, and HD 177474. The star is a spectroscopic binary. The system is located at Right Ascension 19h 06m 25s and Declination -37 deg 03 arcmin 48 arcsec. The system has a combined apparent visual magnitude of +4.26 is located 18 pc (58 light years) from the Sun.
Gamma Coronae Australis A is an F8V dwarf star with an effective temperature of 5500 Kelvin. It has an apparent visual magnitude of +4.9, an absolute magnitude of +2.97, and a mass of 1.2 solar masses.
Gamma Coronae Australis B, also known as HR 7227, and HD 177475 is an F8V dwarf star with an effective temperature of 5500 Kelvin. It has an apparent visual magnitude of +5, an absolute magnitude of +2.97, and a mass of 1.2 solar masses.
The angular separation of A and B is just 4.5 arcsec.
References
- 1 2 3 van Leeuwen, F. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.