Astronomy
Constellations - Saggitarius - 28 Sgr

 
Identification Data
Common Name
ConstellationSaggitarius
Star Name28 Sgr
Skymap Number18460079
Henry Draper (HD) Number173460
Harvard Revised (HR) Number7046
SAO Number187255
Durchmusterung (DM) NumberCD-2213275
Washington Double Stars (WDS) Number
18463-2224
Positional Data
Position and Proper Motion (PPM) Number268874
Right Ascension (RA) J200018h 46m 20.608s
Declination (Dec) J2000-22° 23' 31.834"
Position Uncertainty0.0091s
Proper Motion in RA (J2000)/cos(Dec)+0.00231
Proper Motion in Dec (J2000)+0.003566
Radial Velocity-002.7km s-1
Trigonometric Parallax+0.00255s
Trigonometric Parallax Uncertainty0.00103s
GCI Unit Vector in X (J2000)0.185693
GCI Unit Vector in Y (J2000)-0.905759
GCI Unit Vector in Z (J2000)-0.380944
Galactic Longitude12.28°
Galactic Latitude
-8.94°
Observational Data
Observed Visual Magnitude (V)5.38
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude6.98
Observed B-V Colour+1.597
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 Magnitude4.9
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK4III
One-Dimensional Spectral ClassK2
Position Angle212
Year of Observation1928. 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 13:15:50 GMT+01:00 2001