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Astronomy
Constellations - Eridanus - 20 Eri

 
Identification Data
Common Name
ConstellationEridanus
Star Name20 Eri
Skymap Number3360034
Henry Draper (HD) Number22470
Harvard Revised (HR) Number1100
SAO Number149063
Durchmusterung (DM) NumberSD-17 699
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number213138
Right Ascension (RA) J20003h 36m 17.410s
Declination (Dec) J2000-17° 28' 1.447"
Position Uncertainty0.0121s
Proper Motion in RA (J2000)/cos(Dec)+0.00233
Proper Motion in Dec (J2000)-0.009767
Radial Velocity+014.0km s-1
Trigonometric Parallax+0.00689s
Trigonometric Parallax Uncertainty0.00082s
GCI Unit Vector in X (J2000)0.559705
GCI Unit Vector in Y (J2000)0.772422
GCI Unit Vector in Z (J2000)-0.300158
Galactic Longitude207.47°
Galactic Latitude
-50.85°
Observational Data
Observed Visual Magnitude (V)5.25
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.13
Observed B-V Colour-0.119
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.3
Observed Photographic Magnitude5.3
Morgan Keenan (MK) Spectral TypeB9.5p
One-Dimensional Spectral ClassA0
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 13:15:40 GMT+01:00 2001
 
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