Identification Data |
Common Name | |
Constellation | Hydrus |
Star Name | zet Hyi |
Skymap Number | 2450084 |
Henry Draper (HD) Number | 17566 |
Harvard Revised (HR) Number | 837 |
SAO Number | 248644 |
Durchmusterung (DM) Number | CP-68 169 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 353113 |
Right Ascension (RA) J2000 | 2h 45m 32.634s |
Declination (Dec) J2000 | -67° 36' 59.821" |
Position Uncertainty | 0.0052s |
Proper Motion in RA (J2000)/cos(Dec) | +0.01164 |
Proper Motion in Dec (J2000) | +0.044066 |
Radial Velocity | +003.6km s-1 |
Trigonometric Parallax | +0.01106s |
Trigonometric Parallax Uncertainty | 0.00048s |
GCI Unit Vector in X (J2000) | 0.285706 |
GCI Unit Vector in Y (J2000) | 0.251759 |
GCI Unit Vector in Z (J2000) | -0.924657 |
Galactic Longitude | 287.75° |
Galactic Latitude
| -46.00°
|
Observational Data |
Observed Visual Magnitude (V) | 4.84 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.90 |
Observed B-V Colour | +0.064 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.9 |
Observed Photographic Magnitude | 5.0 |
Morgan Keenan (MK) Spectral Type | A2IV-V |
One-Dimensional Spectral Class | A2 |
Position Angle | |
Year of Observation | AD |