Astronomy
Constellations - Hydrus - nu Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Namenu Hyi
Skymap Number2500058
Henry Draper (HD) Number18293
Harvard Revised (HR) Number872
SAO Number255929
Durchmusterung (DM) NumberCP-75 204
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number367814
Right Ascension (RA) J20002h 50m 28.460s
Declination (Dec) J2000-75° 4' 1.010"
Position Uncertainty0.0058s
Proper Motion in RA (J2000)/cos(Dec)-0.00878
Proper Motion in Dec (J2000)-0.027266
Radial Velocity+004.7km s-1
Trigonometric Parallax+0.00992s
Trigonometric Parallax Uncertainty0.00048s
GCI Unit Vector in X (J2000)0.189628
GCI Unit Vector in Y (J2000)0.174486
GCI Unit Vector in Z (J2000)-0.966228
Galactic Longitude293.35°
Galactic Latitude
-39.77°
Observational Data
Observed Visual Magnitude (V)4.74
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.08
Observed B-V Colour+1.337
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.7
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK3III
One-Dimensional Spectral ClassK2
Position Angle
Year of Observation 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