| 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 |
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