Astronomy
Constellations - Grus - bet Gru

 
Identification Data
Common Name
ConstellationGrus
Star Namebet Gru
Skymap Number22420094
Henry Draper (HD) Number214952
Harvard Revised (HR) Number8636
SAO Number231258
Durchmusterung (DM) NumberCD-4714308
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number328536
Right Ascension (RA) J200022h 42m 40.050s
Declination (Dec) J2000-46° 53' 4.477"
Position Uncertainty0.0073s
Proper Motion in RA (J2000)/cos(Dec)+0.01323
Proper Motion in Dec (J2000)-0.004566
Radial Velocity+001.6km s-1
Trigonometric Parallax+0.01917s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)0.644929
GCI Unit Vector in Y (J2000)-0.226270
GCI Unit Vector in Z (J2000)-0.729978
Galactic Longitude346.27°
Galactic Latitude
-57.95°
Observational Data
Observed Visual Magnitude (V)2.12
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.010
Observed B Magnitude3.66
Observed B-V Colour+1.535
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 Magnitude2.2
Observed Photographic Magnitude3.6
Morgan Keenan (MK) Spectral TypeM4.5III
One-Dimensional Spectral ClassM0
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