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Astronomy
Constellations - Hydrus - eps Hyi

 
Identification Data
Common Name
ConstellationHydrus
Star Nameeps Hyi
Skymap Number2390084
Henry Draper (HD) Number16978
Harvard Revised (HR) Number806
SAO Number248621
Durchmusterung (DM) NumberCP-68 161
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number353052
Right Ascension (RA) J20002h 39m 35.361s
Declination (Dec) J2000-68° 16' 1.006"
Position Uncertainty0.0057s
Proper Motion in RA (J2000)/cos(Dec)+0.01574
Proper Motion in Dec (J2000)+0.000666
Radial Velocity+006.0km s-1
Trigonometric Parallax+0.02127s
Trigonometric Parallax Uncertainty0.00050s
GCI Unit Vector in X (J2000)0.284079
GCI Unit Vector in Y (J2000)0.237505
GCI Unit Vector in Z (J2000)-0.928919
Galactic Longitude288.95°
Galactic Latitude
-45.82°
Observational Data
Observed Visual Magnitude (V)4.11
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude4.06
Observed B-V Colour-0.049
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 Magnitude4.3
Observed Photographic Magnitude4.2
Morgan Keenan (MK) Spectral TypeB9V
One-Dimensional Spectral ClassB9
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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