Astronomy
Constellations - Gemini - 30 Gem

 
Identification Data
Common Name
ConstellationGemini
Star Name30 Gem
Skymap Number6430270
Henry Draper (HD) Number48433
Harvard Revised (HR) Number2478
SAO Number96051
Durchmusterung (DM) NumberBD+13 1390
Washington Double Stars (WDS) Number
06440+1314
Positional Data
Position and Proper Motion (PPM) Number122951
Right Ascension (RA) J20006h 43m 59.292s
Declination (Dec) J2000+13° 13' 40.862"
Position Uncertainty0.0075s
Proper Motion in RA (J2000)/cos(Dec)-0.00016
Proper Motion in Dec (J2000)-0.051866
Radial Velocity+013.6km s-1
Trigonometric Parallax+0.01182s
Trigonometric Parallax Uncertainty0.00083s
GCI Unit Vector in X (J2000)-0.185697
GCI Unit Vector in Y (J2000)0.955591
GCI Unit Vector in Z (J2000)0.228827
Galactic Longitude200.30°
Galactic Latitude
4.37°
Observational Data
Observed Visual Magnitude (V)4.49
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.66
Observed B-V Colour+1.165
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude4.7
Observed Photographic Magnitude5.8
Morgan Keenan (MK) Spectral TypeK0.5IIICN0.5
One-Dimensional Spectral ClassK0
Position Angle184
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