| Identification Data |
| Common Name | |
| Constellation | Hydra |
| Star Name | bet Hya |
| Skymap Number | 11520136 |
| Henry Draper (HD) Number | 103192 |
| Harvard Revised (HR) Number | 4552 |
| SAO Number | 202901 |
| Durchmusterung (DM) Number | CD-33 8018 |
Washington Double Stars (WDS) Number
| 11529-3354
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 289465 |
| Right Ascension (RA) J2000 | 11h 52m 54.520s |
| Declination (Dec) J2000 | -33° 54' 29.248" |
| Position Uncertainty | 0.0093s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00466 |
| Proper Motion in Dec (J2000) | +0.002467 |
| Radial Velocity | -001.0km s-1 |
| Trigonometric Parallax | +0.00893s |
| Trigonometric Parallax Uncertainty | 0.00088s |
| GCI Unit Vector in X (J2000) | -0.829536 |
| GCI Unit Vector in Y (J2000) | 0.025675 |
| GCI Unit Vector in Z (J2000) | -0.557863 |
| Galactic Longitude | 289.28° |
Galactic Latitude
| 27.41°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.29 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 4.20 |
| Observed B-V Colour | -0.087 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.007 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.5 |
| Observed Photographic Magnitude | 4.4 |
| Morgan Keenan (MK) Spectral Type | B9IIIpSi |
| One-Dimensional Spectral Class | B9 |
| Position Angle | 28 |
| Year of Observation | 1991. AD |
Printer Version