Identification Data |
Common Name | |
Constellation | Coma Berenices |
Star Name | 22 Com |
Skymap Number | 12330079 |
Henry Draper (HD) Number | 109307 |
Harvard Revised (HR) Number | 4780 |
SAO Number | 82378 |
Durchmusterung (DM) Number | BD+25 2523 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 101990 |
Right Ascension (RA) J2000 | 12h 33m 34.220s |
Declination (Dec) J2000 | +24° 16' 58.743" |
Position Uncertainty | 0.0093s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00080 |
Proper Motion in Dec (J2000) | -0.008666 |
Radial Velocity | +001.6km s-1 |
Trigonometric Parallax | +0.00941s |
Trigonometric Parallax Uncertainty | 0.00088s |
GCI Unit Vector in X (J2000) | -0.901764 |
GCI Unit Vector in Y (J2000) | -0.133042 |
GCI Unit Vector in Z (J2000) | 0.411244 |
Galactic Longitude | 247.30° |
Galactic Latitude
| 85.07°
|
Observational Data |
Observed Visual Magnitude (V) | 6.26 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 6.38 |
Observed B-V Colour | +0.116 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 6.1 |
Observed Photographic Magnitude | 6.2 |
Morgan Keenan (MK) Spectral Type | A4Vm |
One-Dimensional Spectral Class | A2 |
Position Angle | |
Year of Observation | AD |