Identification Data |
Common Name | |
Constellation | Coma Berenices |
Star Name | 12 Com |
Skymap Number | 12220080 |
Henry Draper (HD) Number | 107700 |
Harvard Revised (HR) Number | 4707 |
SAO Number | 82273 |
Durchmusterung (DM) Number | BD+26 2337 |
Washington Double Stars (WDS) Number
| 12225+2551
|
Positional Data |
Position and Proper Motion (PPM) Number | 101845 |
Right Ascension (RA) J2000 | 12h 22m 30.312s |
Declination (Dec) J2000 | +25° 50' 46.177" |
Position Uncertainty | 0.0088s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00080 |
Proper Motion in Dec (J2000) | -0.008966 |
Radial Velocity | +000.5km s-1 |
Trigonometric Parallax | +0.01193s |
Trigonometric Parallax Uncertainty | 0.00072s |
GCI Unit Vector in X (J2000) | -0.895632 |
GCI Unit Vector in Y (J2000) | -0.088233 |
GCI Unit Vector in Z (J2000) | 0.435956 |
Galactic Longitude | 222.56° |
Galactic Latitude
| 83.40°
|
Observational Data |
Observed Visual Magnitude (V) | 4.80 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 5.30 |
Observed B-V Colour | +0.503 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.8 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | G0III-IV+A3V |
One-Dimensional Spectral Class | F5 |
Position Angle | 167 |
Year of Observation | 1972. AD |