| Identification Data |
| Common Name | |
| Constellation | Hydra |
| Star Name | 47 Hya |
| Skymap Number | 13580063 |
| Henry Draper (HD) Number | 121847 |
| Harvard Revised (HR) Number | 5250 |
| SAO Number | 182134 |
| Durchmusterung (DM) Number | CD-2411202 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 262325 |
| Right Ascension (RA) J2000 | 13h 58m 31.146s |
| Declination (Dec) J2000 | -24° 58' 20.095" |
| Position Uncertainty | 0.0089s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00367 |
| Proper Motion in Dec (J2000) | -0.029366 |
| Radial Velocity | +005.0km s-1 |
| Trigonometric Parallax | +0.00961s |
| Trigonometric Parallax Uncertainty | 0.00069s |
| GCI Unit Vector in X (J2000) | -0.787975 |
| GCI Unit Vector in Y (J2000) | -0.448174 |
| GCI Unit Vector in Z (J2000) | -0.422179 |
| Galactic Longitude | 321.67° |
Galactic Latitude
| 35.45°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.21 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.12 |
| Observed B-V Colour | -0.090 |
| 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 | 5.2 |
| Observed Photographic Magnitude | 5.1 |
| Morgan Keenan (MK) Spectral Type | B8Vp(shell) |
| One-Dimensional Spectral Class | B8 |
| Position Angle | |
| Year of Observation | AD |
