Astronomy
Constellations - Orion - 25psi1Ori

 
Identification Data
Common Name
ConstellationOrion
Star Name25psi1Ori
Skymap Number5240129
Henry Draper (HD) Number35439
Harvard Revised (HR) Number1789
SAO Number112734
Durchmusterung (DM) NumberBD+01 1005
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number148907
Right Ascension (RA) J20005h 24m 44.826s
Declination (Dec) J2000+1° 50' 47.201"
Position Uncertainty0.0078s
Proper Motion in RA (J2000)/cos(Dec)+0.00001
Proper Motion in Dec (J2000)-0.000666
Radial Velocity+009.km s-1
Trigonometric Parallax+0.00294s
Trigonometric Parallax Uncertainty0.00087s
GCI Unit Vector in X (J2000)0.153134
GCI Unit Vector in Y (J2000)0.987680
GCI Unit Vector in Z (J2000)0.032221
Galactic Longitude200.96°
Galactic Latitude
-18.29°
Observational Data
Observed Visual Magnitude (V)4.89
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude4.71
Observed B-V Colour-0.179
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 Magnitude4.7
Observed Photographic Magnitude4.5
Morgan Keenan (MK) Spectral TypeB1Vpe
One-Dimensional Spectral ClassB3
Position Angle216
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