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Astronomy
Constellations - Orion - 42 Ori

 
Identification Data
Common Name
ConstellationOrion
Star Name42 Ori
Skymap Number5350097
Henry Draper (HD) Number37018
Harvard Revised (HR) Number1892
SAO Number132320
Durchmusterung (DM) NumberSD-04 1185
Washington Double Stars (WDS) Number
05354-0450
Positional Data
Position and Proper Motion (PPM) Number188224
Right Ascension (RA) J20005h 35m 23.164s
Declination (Dec) J2000-4° 50' 18.088"
Position Uncertainty0.0153s
Proper Motion in RA (J2000)/cos(Dec)+0.00029
Proper Motion in Dec (J2000)-0.007266
Radial Velocity+030.0km s-1
Trigonometric Parallax+0.00415s
Trigonometric Parallax Uncertainty0.00159s
GCI Unit Vector in X (J2000)0.106810
GCI Unit Vector in Y (J2000)0.990695
GCI Unit Vector in Z (J2000)-0.084345
Galactic Longitude208.51°
Galactic Latitude
-19.11°
Observational Data
Observed Visual Magnitude (V)4.60
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude4.41
Observed B-V Colour-0.193
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 Magnitude4.3
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeB1V
One-Dimensional Spectral ClassB3
Position Angle207
Year of Observation1968. 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 13:15:46 GMT+01:00 2001
 
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