| Identification Data |
| Common Name | |
| Constellation | Aquarius |
| Star Name | 12 Aqr |
| Skymap Number | 21040202 |
| Henry Draper (HD) Number | 200497 |
| Harvard Revised (HR) Number | 8059 |
| SAO Number | 145065 |
| Durchmusterung (DM) Number | SD-06 5664 |
Washington Double Stars (WDS) Number
| 21041-0549
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 204770 |
| Right Ascension (RA) J2000 | 21h 4m 4.724s |
| Declination (Dec) J2000 | -5° 49' 23.038" |
| Position Uncertainty | 0.0151s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00140 |
| Proper Motion in Dec (J2000) | -0.007067 |
| Radial Velocity | +001.3km s-1 |
| Trigonometric Parallax | +0.00603s |
| Trigonometric Parallax Uncertainty | 0.00117s |
| GCI Unit Vector in X (J2000) | 0.715865 |
| GCI Unit Vector in Y (J2000) | -0.690828 |
| GCI Unit Vector in Z (J2000) | -0.101457 |
| Galactic Longitude | 43.67° |
Galactic Latitude
| -32.04°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.74 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
| Observed B Magnitude | 6.58 |
| Observed B-V Colour | +0.84 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
| Observed U Magnitude | 7.06 |
| Observed U-B Colour | +0.48 |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | 0.050 |
| Observed Photovisual Magnitude | 5.2 |
| Observed Photographic Magnitude | 6.3 |
| Morgan Keenan (MK) Spectral Type | G4III |
| One-Dimensional Spectral Class | F5 |
| Position Angle | 195 |
| Year of Observation | 1991. AD |
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