| Identification Data |
| Common Name | |
| Constellation | Aquarius |
| Star Name | 81 Aqr |
| Skymap Number | 23010062 |
| Henry Draper (HD) Number | 217531 |
| Harvard Revised (HR) Number | 8757 |
| SAO Number | 146447 |
| Durchmusterung (DM) Number | SD-07 5910 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 207047 |
| Right Ascension (RA) J2000 | 23h 1m 23.641s |
| Declination (Dec) J2000 | -7° 3' 40.149" |
| Position Uncertainty | 0.0105s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00109 |
| Proper Motion in Dec (J2000) | -0.007866 |
| Radial Velocity | -002.1km s-1 |
| Trigonometric Parallax | +0.00779s |
| Trigonometric Parallax Uncertainty | 0.00086s |
| GCI Unit Vector in X (J2000) | 0.960144 |
| GCI Unit Vector in Y (J2000) | -0.251021 |
| GCI Unit Vector in Z (J2000) | -0.122929 |
| Galactic Longitude | 65.44° |
Galactic Latitude
| -57.08°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.22 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 7.64 |
| Observed B-V Colour | +1.421 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.011 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 6.1 |
| Observed Photographic Magnitude | 7.5 |
| Morgan Keenan (MK) Spectral Type | K5III |
| One-Dimensional Spectral Class | K2 |
| Position Angle | |
| Year of Observation | AD |
