Astronomy
Constellations - Gemini - 49 Gem

 
Identification Data
Common Name
ConstellationGemini
Star Name49 Gem
Skymap Number7120211
Henry Draper (HD) Number55156
Harvard Revised (HR) Number
SAO Number79172
Durchmusterung (DM) NumberBD+25 1609
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number97204
Right Ascension (RA) J20007h 12m 49.375s
Declination (Dec) J2000+25° 44' 55.320"
Position Uncertainty0.0138s
Proper Motion in RA (J2000)/cos(Dec)-0.00038
Proper Motion in Dec (J2000)-0.002466
Radial Velocity-007.0km s-1
Trigonometric Parallax+0.00387s
Trigonometric Parallax Uncertainty0.00109s
GCI Unit Vector in X (J2000)-0.281408
GCI Unit Vector in Y (J2000)0.855619
GCI Unit Vector in Z (J2000)0.434425
Galactic Longitude191.71°
Galactic Latitude
15.83°
Observational Data
Observed Visual Magnitude (V)7.06
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.006
Observed B Magnitude7.03
Observed B-V Colour-0.027
Observed B Magnitude or (B-V) Magnitude Uncertainty0.007
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.9
Observed Photographic Magnitude7.0
Morgan Keenan (MK) Spectral Type
One-Dimensional Spectral ClassA0
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 13:15:41 GMT+01:00 2001