Astronomy
Constellations - Gemini - 12 Gem

 
Identification Data
Common Name
ConstellationGemini
Star Name12 Gem
Skymap Number6190096
Henry Draper (HD) Number43836
Harvard Revised (HR) Number
SAO Number78225
Durchmusterung (DM) NumberBD+23 1301
Washington Double Stars (WDS) Number
06194+2316
Positional Data
Position and Proper Motion (PPM) Number95769
Right Ascension (RA) J20006h 19m 22.522s
Declination (Dec) J2000+23° 16' 28.227"
Position Uncertainty0.0105s
Proper Motion in RA (J2000)/cos(Dec)-0.00005
Proper Motion in Dec (J2000)-0.001766
Radial Velocity+008.2km s-1
Trigonometric Parallax+0.00038s
Trigonometric Parallax Uncertainty0.00100s
GCI Unit Vector in X (J2000)-0.077569
GCI Unit Vector in Y (J2000)0.915341
GCI Unit Vector in Z (J2000)0.395137
Galactic Longitude188.67°
Galactic Latitude
3.79°
Observational Data
Observed Visual Magnitude (V)6.96
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.008
Observed B Magnitude7.40
Observed B-V Colour+0.441
Observed B Magnitude or (B-V) Magnitude Uncertainty0.011
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude7.0
Observed Photographic Magnitude7.7
Morgan Keenan (MK) Spectral TypeA0II
One-Dimensional Spectral ClassB9
Position Angle87
Year of Observation1899. 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 13:15:41 GMT+01:00 2001