Astronomy
Constellations - Grus - sig1Gru

 
Identification Data
Common Name
ConstellationGrus
Star Namesig1Gru
Skymap Number22360084
Henry Draper (HD) Number214085
Harvard Revised (HR) Number8600
SAO Number231211
Durchmusterung (DM) NumberCD-4114959
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number328426
Right Ascension (RA) J200022h 36m 29.307s
Declination (Dec) J2000-40° 34' 57.680"
Position Uncertainty0.0078s
Proper Motion in RA (J2000)/cos(Dec)+0.00405
Proper Motion in Dec (J2000)-0.072266
Radial Velocity+006.9km s-1
Trigonometric Parallax+0.01441s
Trigonometric Parallax Uncertainty0.00081s
GCI Unit Vector in X (J2000)0.709603
GCI Unit Vector in Y (J2000)-0.270657
GCI Unit Vector in Z (J2000)-0.650545
Galactic Longitude358.34°
Galactic Latitude
-59.17°
Observational Data
Observed Visual Magnitude (V)6.28
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude6.41
Observed B-V Colour+0.128
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 Magnitude6.1
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA3Vn
One-Dimensional Spectral ClassA2
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