| Identification Data |
| Common Name | Propus |
| Constellation | Gemini |
| Star Name | 1 Gem |
| Skymap Number | 6040031 |
| Henry Draper (HD) Number | 41116 |
| Harvard Revised (HR) Number | 2134 |
| SAO Number | 77915 |
| Durchmusterung (DM) Number | BD+23 1170 |
Washington Double Stars (WDS) Number
| 06041+2316
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 95324 |
| Right Ascension (RA) J2000 | 6h 4m 7.208s |
| Declination (Dec) J2000 | +23° 15' 47.991" |
| Position Uncertainty | 0.0466s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00133 |
| Proper Motion in Dec (J2000) | -0.128867 |
| Radial Velocity | +020.2km s-1 |
| Trigonometric Parallax | +0.02164s |
| Trigonometric Parallax Uncertainty | 0.00106s |
| GCI Unit Vector in X (J2000) | -0.016515 |
| GCI Unit Vector in Y (J2000) | 0.918551 |
| GCI Unit Vector in Z (J2000) | 0.394958 |
| Galactic Longitude | 187.00° |
Galactic Latitude
| 0.72°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.18 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.01 |
| Observed B-V Colour | +0.830 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.3 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K1III+F6IV |
| One-Dimensional Spectral Class | G5 |
| Position Angle | |
| Year of Observation | 1993. AD |
