| Identification Data |
| Common Name | |
| Constellation | Cancer |
| Star Name | 39 Cnc |
| Skymap Number | 8400025 |
| Henry Draper (HD) Number | 73665 |
| Harvard Revised (HR) Number | 3427 |
| SAO Number | 80333 |
| Durchmusterung (DM) Number | BD+20 2158 |
Washington Double Stars (WDS) Number
| 08401+2000
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 98927 |
| Right Ascension (RA) J2000 | 8h 40m 6.418s |
| Declination (Dec) J2000 | +20° 0' 28.036" |
| Position Uncertainty | 0.0111s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00248 |
| Proper Motion in Dec (J2000) | -0.011866 |
| Radial Velocity | +035.7km s-1 |
| Trigonometric Parallax | +0.00555s |
| Trigonometric Parallax Uncertainty | 0.00089s |
| GCI Unit Vector in X (J2000) | -0.604329 |
| GCI Unit Vector in Y (J2000) | 0.719529 |
| GCI Unit Vector in Z (J2000) | 0.342148 |
| Galactic Longitude | 205.52° |
Galactic Latitude
| 32.54°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.37 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.009 |
| Observed B Magnitude | 7.35 |
| Observed B-V Colour | +0.982 |
| 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 | 6.5 |
| Observed Photographic Magnitude | 7.5 |
| Morgan Keenan (MK) Spectral Type | G8III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 151 |
| Year of Observation | 1984. AD |
