| Identification Data |
| Common Name | |
| Constellation | Gemini |
| Star Name | 51 Gem |
| Skymap Number | 7130084 |
| Henry Draper (HD) Number | 55383 |
| Harvard Revised (HR) Number | 2717 |
| SAO Number | 96638 |
| Durchmusterung (DM) Number | BD+16 1417 |
Washington Double Stars (WDS) Number
| 07134+1610
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 123710 |
| Right Ascension (RA) J2000 | 7h 13m 22.274s |
| Declination (Dec) J2000 | +16° 9' 32.222" |
| Position Uncertainty | 0.0156s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00102 |
| Proper Motion in Dec (J2000) | -0.041867 |
| Radial Velocity | -009.2km s-1 |
| Trigonometric Parallax | +0.00466s |
| Trigonometric Parallax Uncertainty | 0.00090s |
| GCI Unit Vector in X (J2000) | -0.302269 |
| GCI Unit Vector in Y (J2000) | 0.911691 |
| GCI Unit Vector in Z (J2000) | 0.278303 |
| Galactic Longitude | 200.79° |
Galactic Latitude
| 12.04°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.06 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.014 |
| Observed B Magnitude | 6.64 |
| Observed B-V Colour | +1.583 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.015 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.3 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | M4IIIab |
| One-Dimensional Spectral Class | M0 |
| Position Angle | 20 |
| Year of Observation | 1903. AD |
