Identification Data |
Common Name | |
Constellation | Aquarius |
Star Name | 25 Aqr |
Skymap Number | 21390111 |
Henry Draper (HD) Number | 206067 |
Harvard Revised (HR) Number | 8277 |
SAO Number | 126965 |
Durchmusterung (DM) Number | BD+01 4517 |
Washington Double Stars (WDS) Number
| 21396+0215
|
Positional Data |
Position and Proper Motion (PPM) Number | 172073 |
Right Ascension (RA) J2000 | 21h 39m 33.265s |
Declination (Dec) J2000 | +2° 14' 36.810" |
Position Uncertainty | 0.0109s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00218 |
Proper Motion in Dec (J2000) | -0.084266 |
Radial Velocity | -032.2km s-1 |
Trigonometric Parallax | +0.01355s |
Trigonometric Parallax Uncertainty | 0.00088s |
GCI Unit Vector in X (J2000) | 0.817408 |
GCI Unit Vector in Y (J2000) | -0.574727 |
GCI Unit Vector in Z (J2000) | 0.039147 |
Galactic Longitude | 57.55° |
Galactic Latitude
| -35.28°
|
Observational Data |
Observed Visual Magnitude (V) | 5.10 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.13 |
Observed B-V Colour | +1.032 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 5.3 |
Observed Photographic Magnitude | 6.5 |
Morgan Keenan (MK) Spectral Type | K0III |
One-Dimensional Spectral Class | K0 |
Position Angle | 45 |
Year of Observation | 1960. AD |