| Identification Data |
| Common Name | |
| Constellation | Capricornus |
| Star Name | 31 Cap |
| Skymap Number | 21180046 |
| Henry Draper (HD) Number | 202723 |
| Harvard Revised (HR) Number | 8139 |
| SAO Number | 164289 |
| Durchmusterung (DM) Number | SD-18 5904 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 238646 |
| Right Ascension (RA) J2000 | 21h 18m 15.660s |
| Declination (Dec) J2000 | -17° 27' 44.157" |
| Position Uncertainty | 0.0100s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00270 |
| Proper Motion in Dec (J2000) | +0.002666 |
| Radial Velocity | -007.km s-1 |
| Trigonometric Parallax | +0.00965s |
| Trigonometric Parallax Uncertainty | 0.00098s |
| GCI Unit Vector in X (J2000) | 0.726068 |
| GCI Unit Vector in Y (J2000) | -0.618692 |
| GCI Unit Vector in Z (J2000) | -0.300078 |
| Galactic Longitude | 32.41° |
Galactic Latitude
| -40.11°
|
| Observational Data |
| Observed Visual Magnitude (V) | 7.06 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 7.41 |
| Observed B-V Colour | +0.354 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 7.3 |
| Observed Photographic Magnitude | 6.5 |
| Morgan Keenan (MK) Spectral Type | F2V |
| One-Dimensional Spectral Class | A5 |
| Position Angle | |
| Year of Observation | AD |
