Identification Data |
Common Name | |
Constellation | Coma Berenices |
Star Name | 17 Com |
Skymap Number | 12280122 |
Henry Draper (HD) Number | 108662 |
Harvard Revised (HR) Number | 4752 |
SAO Number | 82330 |
Durchmusterung (DM) Number | BD+26 2354 |
Washington Double Stars (WDS) Number
| 12289+2555
|
Positional Data |
Position and Proper Motion (PPM) Number | 101928 |
Right Ascension (RA) J2000 | 12h 28m 54.704s |
Declination (Dec) J2000 | +25° 54' 46.266" |
Position Uncertainty | 0.0092s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00150 |
Proper Motion in Dec (J2000) | -0.015066 |
Radial Velocity | -002.4km s-1 |
Trigonometric Parallax | +0.01206s |
Trigonometric Parallax Uncertainty | 0.00084s |
GCI Unit Vector in X (J2000) | -0.892312 |
GCI Unit Vector in Y (J2000) | -0.113167 |
GCI Unit Vector in Z (J2000) | 0.437004 |
Galactic Longitude | 225.29° |
Galactic Latitude
| 84.82°
|
Observational Data |
Observed Visual Magnitude (V) | 5.25 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
Observed B Magnitude | 5.23 |
Observed B-V Colour | -0.019 |
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 | 5.4 |
Observed Photographic Magnitude | 5.4 |
Morgan Keenan (MK) Spectral Type | A1IVp |
One-Dimensional Spectral Class | A0 |
Position Angle | 251 |
Year of Observation | 1968. AD |