Identification Data |
Common Name | Prima Giedi |
Constellation | Capricornus |
Star Name | 5alp1Cap |
Skymap Number | 20170133 |
Henry Draper (HD) Number | 192876 |
Harvard Revised (HR) Number | 7747 |
SAO Number | 163422 |
Durchmusterung (DM) Number | SD-12 5683 |
Washington Double Stars (WDS) Number
| 20176-1230
|
Positional Data |
Position and Proper Motion (PPM) Number | 237206 |
Right Ascension (RA) J2000 | 20h 17m 38.869s |
Declination (Dec) J2000 | -12° 30' 29.564" |
Position Uncertainty | 0.0108s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00152 |
Proper Motion in Dec (J2000) | +0.000867 |
Radial Velocity | -026.0km s-1 |
Trigonometric Parallax | +0.00475s |
Trigonometric Parallax Uncertainty | 0.00096s |
GCI Unit Vector in X (J2000) | 0.551726 |
GCI Unit Vector in Y (J2000) | -0.805414 |
GCI Unit Vector in Z (J2000) | -0.216580 |
Galactic Longitude | 31.10° |
Galactic Latitude
| -24.70°
|
Observational Data |
Observed Visual Magnitude (V) | 4.24 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.29 |
Observed B-V Colour | +1.046 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.6 |
Observed Photographic Magnitude | 5.1 |
Morgan Keenan (MK) Spectral Type | G3Ib |
One-Dimensional Spectral Class | G0 |
Position Angle | 221 |
Year of Observation | 1932. AD |