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Astronomy
Constellations - Orion - 44iot Ori (Nair al Saif)

 
Identification Data
Common NameNair al Saif
ConstellationOrion
Star Name44iot Ori
Skymap Number5350111
Henry Draper (HD) Number37043
Harvard Revised (HR) Number1899
SAO Number132323
Durchmusterung (DM) NumberSD-06 1241
Washington Double Stars (WDS) Number
05354-0555
Positional Data
Position and Proper Motion (PPM) Number188225
Right Ascension (RA) J20005h 35m 25.982s
Declination (Dec) J2000-5° 54' 35.645"
Position Uncertainty0.0071s
Proper Motion in RA (J2000)/cos(Dec)+0.00015
Proper Motion in Dec (J2000)-0.000666
Radial Velocity+021.5km s-1
Trigonometric Parallax+0.00246s
Trigonometric Parallax Uncertainty0.00077s
GCI Unit Vector in X (J2000)0.106420
GCI Unit Vector in Y (J2000)0.988976
GCI Unit Vector in Z (J2000)-0.102964
Galactic Longitude209.53°
Galactic Latitude
-19.58°
Observational Data
Observed Visual Magnitude (V)2.78
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude2.57
Observed B-V Colour-0.211
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 Magnitude2.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeO9III
One-Dimensional Spectral ClassOe5
Position Angle141
Year of Observation1987. 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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