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Astronomy
Constellations - Hydrus - eta2Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Nameeta2Hyi
Skymap Number1540133
Henry Draper (HD) Number11977
Harvard Revised (HR) Number570
SAO Number248460
Durchmusterung (DM) NumberCP-68 101
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number352648
Right Ascension (RA) J20001h 54m 56.131s
Declination (Dec) J2000-67° 38' 50.292"
Position Uncertainty0.0056s
Proper Motion in RA (J2000)/cos(Dec)+0.01332
Proper Motion in Dec (J2000)+0.073266
Radial Velocity-016.2km s-1
Trigonometric Parallax+0.01504s
Trigonometric Parallax Uncertainty0.00047s
GCI Unit Vector in X (J2000)0.333477
GCI Unit Vector in Y (J2000)0.182830
GCI Unit Vector in Z (J2000)-0.924860
Galactic Longitude293.92°
Galactic Latitude
-48.35°
Observational Data
Observed Visual Magnitude (V)4.69
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.62
Observed B-V Colour+0.931
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 Magnitude4.7
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeG8.5III
One-Dimensional Spectral ClassK0
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))

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