Astronomy
Constellations - Hydrus - zet Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Namezet Hyi
Skymap Number2450084
Henry Draper (HD) Number17566
Harvard Revised (HR) Number837
SAO Number248644
Durchmusterung (DM) NumberCP-68 169
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number353113
Right Ascension (RA) J20002h 45m 32.634s
Declination (Dec) J2000-67° 36' 59.821"
Position Uncertainty0.0052s
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 Uncertainty0.00048s
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 Longitude287.75°
Galactic Latitude
-46.00°
Observational Data
Observed Visual Magnitude (V)4.84
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.90
Observed B-V Colour+0.064
Observed B Magnitude or (B-V) Magnitude Uncertainty0.002
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.9
Observed Photographic Magnitude5.0
Morgan Keenan (MK) Spectral TypeA2IV-V
One-Dimensional Spectral ClassA2
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