Identification Data |
Common Name | |
Constellation | Hydrus |
Star Name | sig Hyi |
Skymap Number | 1550117 |
Henry Draper (HD) Number | 12363 |
Harvard Revised (HR) Number | 593 |
SAO Number | 255835 |
Durchmusterung (DM) Number | CP-78 42 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 367467 |
Right Ascension (RA) J2000 | 1h 55m 50.548s |
Declination (Dec) J2000 | -78° 20' 54.774" |
Position Uncertainty | 0.0067s |
Proper Motion in RA (J2000)/cos(Dec) | +0.03400 |
Proper Motion in Dec (J2000) | +0.053166 |
Radial Velocity | +006.0km s-1 |
Trigonometric Parallax | +0.02420s |
Trigonometric Parallax Uncertainty | 0.00051s |
GCI Unit Vector in X (J2000) | 0.176703 |
GCI Unit Vector in Y (J2000) | 0.097790 |
GCI Unit Vector in Z (J2000) | -0.979394 |
Galactic Longitude | 298.84° |
Galactic Latitude
| -38.26°
|
Observational Data |
Observed Visual Magnitude (V) | 6.15 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
Observed B Magnitude | 6.60 |
Observed B-V Colour | +0.448 |
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 | 6.2 |
Observed Photographic Magnitude | |
Morgan Keenan (MK) Spectral Type | F5-6IV-V |
One-Dimensional Spectral Class | F2 |
Position Angle | |
Year of Observation | AD |