| Identification Data |
| Common Name | |
| Constellation | Gemini |
| Star Name | 40 Gem |
| Skymap Number | 6590138 |
| Henry Draper (HD) Number | 51688 |
| Harvard Revised (HR) Number | 2605 |
| SAO Number | 78947 |
| Durchmusterung (DM) Number | BD+26 1411 |
Washington Double Stars (WDS) Number
| 06595+2555
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 96855 |
| Right Ascension (RA) J2000 | 6h 59m 27.932s |
| Declination (Dec) J2000 | +25° 54' 51.015" |
| Position Uncertainty | 0.0107s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00034 |
| Proper Motion in Dec (J2000) | -0.006666 |
| Radial Velocity | +012.0km s-1 |
| Trigonometric Parallax | +0.00272s |
| Trigonometric Parallax Uncertainty | 0.00088s |
| GCI Unit Vector in X (J2000) | -0.230768 |
| GCI Unit Vector in Y (J2000) | 0.869342 |
| GCI Unit Vector in Z (J2000) | 0.437024 |
| Galactic Longitude | 190.31° |
Galactic Latitude
| 13.14°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.40 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
| Observed B Magnitude | 6.29 |
| Observed B-V Colour | -0.109 |
| 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 | 6.3 |
| Observed Photographic Magnitude | 6.3 |
| Morgan Keenan (MK) Spectral Type | B8III |
| One-Dimensional Spectral Class | B9 |
| Position Angle | 57 |
| Year of Observation | 1988. AD |
