Astronomy
Constellations - Orion - 57 Ori

 
Identification Data
Common Name
ConstellationOrion
Star Name57 Ori
Skymap Number5540193
Henry Draper (HD) Number39698
Harvard Revised (HR) Number2052
SAO Number94986
Durchmusterung (DM) NumberBD+19 1126
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number121581
Right Ascension (RA) J20005h 54m 56.686s
Declination (Dec) J2000+19° 44' 58.611"
Position Uncertainty0.0078s
Proper Motion in RA (J2000)/cos(Dec)+0.00003
Proper Motion in Dec (J2000)-0.004166
Radial Velocity+007.2km s-1
Trigonometric Parallax+0.00232s
Trigonometric Parallax Uncertainty0.00084s
GCI Unit Vector in X (J2000)0.020758
GCI Unit Vector in Y (J2000)0.940949
GCI Unit Vector in Z (J2000)0.337910
Galactic Longitude188.98°
Galactic Latitude
-2.88°
Observational Data
Observed Visual Magnitude (V)5.91
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude5.76
Observed B-V Colour-0.148
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 Magnitude5.9
Observed Photographic Magnitude5.6
Morgan Keenan (MK) Spectral TypeB2V
One-Dimensional Spectral ClassB2
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))

 
Page compiled: Sun Sep 02 13:15:46 GMT+01:00 2001