| Identification Data |
| Common Name | |
| Constellation | Aquarius |
| Star Name | 18 Aqr |
| Skymap Number | 21240032 |
| Henry Draper (HD) Number | 203705 |
| Harvard Revised (HR) Number | 8187 |
| SAO Number | 164364 |
| Durchmusterung (DM) Number | SD-13 5923 |
Washington Double Stars (WDS) Number
| 21242-1253
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 238788 |
| Right Ascension (RA) J2000 | 21h 24m 11.493s |
| Declination (Dec) J2000 | -12° 52' 41.190" |
| Position Uncertainty | 0.0122s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00627 |
| Proper Motion in Dec (J2000) | +0.009066 |
| Radial Velocity | -003.km s-1 |
| Trigonometric Parallax | +0.02080s |
| Trigonometric Parallax Uncertainty | 0.00091s |
| GCI Unit Vector in X (J2000) | 0.758110 |
| GCI Unit Vector in Y (J2000) | -0.612857 |
| GCI Unit Vector in Z (J2000) | -0.222878 |
| Galactic Longitude | 38.64° |
Galactic Latitude
| -39.64°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.49 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 5.77 |
| Observed B-V Colour | +0.278 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.5 |
| Observed Photographic Magnitude | 5.7 |
| Morgan Keenan (MK) Spectral Type | F1V |
| One-Dimensional Spectral Class | A5 |
| Position Angle | 321 |
| Year of Observation | 1912. AD |
