Astronomy
Constellations - Crux - gam Cru (Gacrux)

 
Identification Data
Common NameGacrux
ConstellationCrux
Star Namegam Cru
Skymap Number12310034
Henry Draper (HD) Number108903
Harvard Revised (HR) Number4763
SAO Number240019
Durchmusterung (DM) NumberCP-56 5272
Washington Double Stars (WDS) Number
12312-5707
Positional Data
Position and Proper Motion (PPM) Number341058
Right Ascension (RA) J200012h 31m 9.959s
Declination (Dec) J2000-57° 6' 47.562"
Position Uncertainty0.0063s
Proper Motion in RA (J2000)/cos(Dec)+0.00343
Proper Motion in Dec (J2000)-0.264366
Radial Velocity+021.3km s-1
Trigonometric Parallax+0.03709s
Trigonometric Parallax Uncertainty0.00067s
GCI Unit Vector in X (J2000)-0.537968
GCI Unit Vector in Y (J2000)-0.073611
GCI Unit Vector in Z (J2000)-0.839745
Galactic Longitude300.17°
Galactic Latitude
5.65°
Observational Data
Observed Visual Magnitude (V)1.65
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude3.17
Observed B-V Colour+1.516
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 Magnitude1.6
Observed Photographic Magnitude3.0
Morgan Keenan (MK) Spectral TypeM3.5III
One-Dimensional Spectral ClassM0
Position Angle31
Year of Observation1919. 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 13:15:38 GMT+01:00 2001