| Identification Data |
| Common Name | Propus |
| Constellation | Gemini |
| Star Name | 7eta Gem |
| Skymap Number | 6140209 |
| Henry Draper (HD) Number | 42995 |
| Harvard Revised (HR) Number | 2216 |
| SAO Number | 78135 |
| Durchmusterung (DM) Number | BD+22 1241 |
Washington Double Stars (WDS) Number
| 06149+2230
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 95649 |
| Right Ascension (RA) J2000 | 6h 14m 52.657s |
| Declination (Dec) J2000 | +22° 30' 24.476" |
| Position Uncertainty | 0.0257s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00451 |
| Proper Motion in Dec (J2000) | -0.010267 |
| Radial Velocity | +019.0km s-1 |
| Trigonometric Parallax | +0.00934s |
| Trigonometric Parallax Uncertainty | 0.00199s |
| GCI Unit Vector in X (J2000) | -0.059929 |
| GCI Unit Vector in Y (J2000) | 0.921888 |
| GCI Unit Vector in Z (J2000) | 0.382793 |
| Galactic Longitude | 188.86° |
Galactic Latitude
| 2.52°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.30 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.008 |
| Observed B Magnitude | 4.86 |
| Observed B-V Colour | +1.560 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.012 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | |
| Observed Photographic Magnitude | 4.5 |
| Morgan Keenan (MK) Spectral Type | M2.5III |
| One-Dimensional Spectral Class | M0 |
| Position Angle | 258 |
| Year of Observation | 1990. AD |
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