| Identification Data |
| Common Name | |
| Constellation | Hydrus |
| Star Name | iot Hyi |
| Skymap Number | 3150137 |
| Henry Draper (HD) Number | 21024 |
| Harvard Revised (HR) Number | 1025 |
| SAO Number | 255973 |
| Durchmusterung (DM) Number | CP-77 134 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 367983 |
| Right Ascension (RA) J2000 | 3h 15m 57.660s |
| Declination (Dec) J2000 | -77° 23' 18.435" |
| Position Uncertainty | 0.0063s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.03456 |
| Proper Motion in Dec (J2000) | +0.062066 |
| Radial Velocity | +019.4km s-1 |
| Trigonometric Parallax | +0.03402s |
| Trigonometric Parallax Uncertainty | 0.00051s |
| GCI Unit Vector in X (J2000) | 0.143272 |
| GCI Unit Vector in Y (J2000) | 0.164759 |
| GCI Unit Vector in Z (J2000) | -0.975873 |
| Galactic Longitude | 293.66° |
Galactic Latitude
| -37.01°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.51 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.95 |
| Observed B-V Colour | +0.437 |
| 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 | 5.5 |
| Observed Photographic Magnitude | 5.9 |
| Morgan Keenan (MK) Spectral Type | F4III |
| One-Dimensional Spectral Class | F2 |
| Position Angle | |
| Year of Observation | AD |
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