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Astronomy
Constellations - Eridanus - 22 Eri

 
Identification Data
Common Name
ConstellationEridanus
Star Name22 Eri
Skymap Number3400089
Henry Draper (HD) Number22920
Harvard Revised (HR) Number1121
SAO Number130652
Durchmusterung (DM) NumberSD-05 715
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number186057
Right Ascension (RA) J20003h 40m 38.333s
Declination (Dec) J2000-5° 12' 38.542"
Position Uncertainty0.0091s
Proper Motion in RA (J2000)/cos(Dec)+0.00001
Proper Motion in Dec (J2000)-0.003666
Radial Velocity+015.7km s-1
Trigonometric Parallax+0.00441s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)0.568930
GCI Unit Vector in Y (J2000)0.817356
GCI Unit Vector in Z (J2000)-0.090819
Galactic Longitude192.10°
Galactic Latitude
-44.18°
Observational Data
Observed Visual Magnitude (V)5.53
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.39
Observed B-V Colour-0.141
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 Magnitude5.5
Observed Photographic Magnitude5.5
Morgan Keenan (MK) Spectral TypeB9IIIpSi4200
One-Dimensional Spectral ClassB8
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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