Identification Data |
Common Name | |
Constellation | Hydrus |
Star Name | eta2Hyi |
Skymap Number | 1540133 |
Henry Draper (HD) Number | 11977 |
Harvard Revised (HR) Number | 570 |
SAO Number | 248460 |
Durchmusterung (DM) Number | CP-68 101 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 352648 |
Right Ascension (RA) J2000 | 1h 54m 56.131s |
Declination (Dec) J2000 | -67° 38' 50.292" |
Position Uncertainty | 0.0056s |
Proper Motion in RA (J2000)/cos(Dec) | +0.01332 |
Proper Motion in Dec (J2000) | +0.073266 |
Radial Velocity | -016.2km s-1 |
Trigonometric Parallax | +0.01504s |
Trigonometric Parallax Uncertainty | 0.00047s |
GCI Unit Vector in X (J2000) | 0.333477 |
GCI Unit Vector in Y (J2000) | 0.182830 |
GCI Unit Vector in Z (J2000) | -0.924860 |
Galactic Longitude | 293.92° |
Galactic Latitude
| -48.35°
|
Observational Data |
Observed Visual Magnitude (V) | 4.69 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 5.62 |
Observed B-V Colour | +0.931 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.7 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | G8.5III |
One-Dimensional Spectral Class | K0 |
Position Angle | |
Year of Observation | AD |