Identification Data |
Common Name | |
Constellation | Corona Australis |
Star Name | the CrA |
Skymap Number | 18330106 |
Henry Draper (HD) Number | 170845 |
Harvard Revised (HR) Number | 6951 |
SAO Number | 229111 |
Durchmusterung (DM) Number | CD-4213378 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 324219 |
Right Ascension (RA) J2000 | 18h 33m 30.185s |
Declination (Dec) J2000 | -42° 18' 45.035" |
Position Uncertainty | 0.0094s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00293 |
Proper Motion in Dec (J2000) | -0.021066 |
Radial Velocity | -002.1km s-1 |
Trigonometric Parallax | +0.00376s |
Trigonometric Parallax Uncertainty | 0.00087s |
GCI Unit Vector in X (J2000) | 0.107717 |
GCI Unit Vector in Y (J2000) | -0.731597 |
GCI Unit Vector in Z (J2000) | -0.673174 |
Galactic Longitude | 352.62° |
Galactic Latitude
| -14.80°
|
Observational Data |
Observed Visual Magnitude (V) | 4.62 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.62 |
Observed B-V Colour | +1.004 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.7 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | G8III |
One-Dimensional Spectral Class | G5 |
Position Angle | |
Year of Observation | AD |