Identification Data |
Common Name | |
Constellation | Gemini |
Star Name | 56 Gem |
Skymap Number | 7210238 |
Henry Draper (HD) Number | 57423 |
Harvard Revised (HR) Number | 2795 |
SAO Number | 79328 |
Durchmusterung (DM) Number | BD+20 1775 |
Washington Double Stars (WDS) Number
| 07219+2027
|
Positional Data |
Position and Proper Motion (PPM) Number | 97421 |
Right Ascension (RA) J2000 | 7h 21m 56.860s |
Declination (Dec) J2000 | +20° 26' 37.170" |
Position Uncertainty | 0.0092s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00442 |
Proper Motion in Dec (J2000) | -0.024066 |
Radial Velocity | +004.4km s-1 |
Trigonometric Parallax | +0.00761s |
Trigonometric Parallax Uncertainty | 0.00083s |
GCI Unit Vector in X (J2000) | -0.327950 |
GCI Unit Vector in Y (J2000) | 0.877752 |
GCI Unit Vector in Z (J2000) | 0.349286 |
Galactic Longitude | 197.63° |
Galactic Latitude
| 15.66°
|
Observational Data |
Observed Visual Magnitude (V) | 5.09 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
Observed B Magnitude | 6.64 |
Observed B-V Colour | +1.545 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.2 |
Observed Photographic Magnitude | 6.2 |
Morgan Keenan (MK) Spectral Type | M0IIIab |
One-Dimensional Spectral Class | K2 |
Position Angle | 202 |
Year of Observation | 1935. AD |