Astronomy
Constellations - Hydrus - the Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Namethe Hyi
Skymap Number3020039
Henry Draper (HD) Number19400
Harvard Revised (HR) Number939
SAO Number255945
Durchmusterung (DM) NumberCP-72 219
Washington Double Stars (WDS) Number
03023-7154
Positional Data
Position and Proper Motion (PPM) Number367896
Right Ascension (RA) J20003h 2m 15.448s
Declination (Dec) J2000-71° 54' 8.844"
Position Uncertainty0.0063s
Proper Motion in RA (J2000)/cos(Dec)+0.00583
Proper Motion in Dec (J2000)+0.015966
Radial Velocity+011.8km s-1
Trigonometric Parallax+0.00621s
Trigonometric Parallax Uncertainty0.00050s
GCI Unit Vector in X (J2000)0.217478
GCI Unit Vector in Y (J2000)0.221805
GCI Unit Vector in Z (J2000)-0.950529
Galactic Longitude289.93°
Galactic Latitude
-41.76°
Observational Data
Observed Visual Magnitude (V)5.51
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.38
Observed B-V Colour-0.126
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.5
Observed Photographic Magnitude5.5
Morgan Keenan (MK) Spectral TypeB3V+A0IV
One-Dimensional Spectral ClassB8
Position Angle179
Year of Observation1961. AD

Data Source
SKY2000 - Master Star Catalog - Star Catalog Database, Version 2
    Sande C.B., Warren Jr. W.H., Tracewell D.A., Home A.T., Miller A.C.
    (Goddard Space Flight Center, Flight Dynamics Division (1998))

 
Page compiled: Sun Sep 02 13:15:43 GMT+01:00 2001