| Identification Data |
| Common Name | |
| Constellation | Gemini |
| Star Name | 21 Gem |
| Skymap Number | 6320073 |
| Henry Draper (HD) Number | 46136 |
| Harvard Revised (HR) Number | |
| SAO Number | 95795 |
| Durchmusterung (DM) Number | BD+17 1286 |
Washington Double Stars (WDS) Number
| 06323+1747
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 122629 |
| Right Ascension (RA) J2000 | 6h 32m 18.545s |
| Declination (Dec) J2000 | +17° 47' 3.658" |
| Position Uncertainty | 0.0351s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00255 |
| Proper Motion in Dec (J2000) | +0.026067 |
| Radial Velocity | +000.4km s-1 |
| Trigonometric Parallax | +0.00921s |
| Trigonometric Parallax Uncertainty | 0.00233s |
| GCI Unit Vector in X (J2000) | -0.133794 |
| GCI Unit Vector in Y (J2000) | 0.942766 |
| GCI Unit Vector in Z (J2000) | 0.305435 |
| Galactic Longitude | 194.95° |
Galactic Latitude
| 3.93°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.26 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 6.79 |
| Observed B-V Colour | +0.532 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.009 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.7 |
| Observed Photographic Magnitude | 7.4 |
| Morgan Keenan (MK) Spectral Type | F8III |
| One-Dimensional Spectral Class | F8 |
| Position Angle | 211 |
| Year of Observation | 1985. AD |
