Astronomy
Constellations - Gemini - 25 Gem

 
Identification Data
Common Name
ConstellationGemini
Star Name25 Gem
Skymap Number6410099
Henry Draper (HD) Number47731
Harvard Revised (HR) Number2453
SAO Number78636
Durchmusterung (DM) NumberBD+28 1207
Washington Double Stars (WDS) Number
06413+2812
Positional Data
Position and Proper Motion (PPM) Number96376
Right Ascension (RA) J20006h 41m 20.897s
Declination (Dec) J2000+28° 11' 47.898"
Position Uncertainty0.0118s
Proper Motion in RA (J2000)/cos(Dec)+0.00004
Proper Motion in Dec (J2000)-0.002566
Radial Velocity-006.1km s-1
Trigonometric Parallax+0.00231s
Trigonometric Parallax Uncertainty0.00098s
GCI Unit Vector in X (J2000)-0.158145
GCI Unit Vector in Y (J2000)0.867026
GCI Unit Vector in Z (J2000)0.472499
Galactic Longitude186.48°
Galactic Latitude
10.42°
Observational Data
Observed Visual Magnitude (V)6.43
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.005
Observed B Magnitude7.52
Observed B-V Colour+1.088
Observed B Magnitude or (B-V) Magnitude Uncertainty0.008
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.5
Observed Photographic Magnitude7.8
Morgan Keenan (MK) Spectral TypeG5Ib
One-Dimensional Spectral ClassK0
Position Angle46
Year of Observation1904. 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