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Astronomy
Constellations - Saggitarius - 55 Sgr

 
Identification Data
Common Name
ConstellationSaggitarius
Star Name55 Sgr
Skymap Number19420134
Henry Draper (HD) Number186005
Harvard Revised (HR) Number7489
SAO Number162915
Durchmusterung (DM) NumberSD-16 5413
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number236375
Right Ascension (RA) J200019h 42m 31.133s
Declination (Dec) J2000-16° 7' 26.387"
Position Uncertainty0.0086s
Proper Motion in RA (J2000)/cos(Dec)+0.00470
Proper Motion in Dec (J2000)-0.009266
Radial Velocity-027.0km s-1
Trigonometric Parallax+0.01867s
Trigonometric Parallax Uncertainty0.00088s
GCI Unit Vector in X (J2000)0.415538
GCI Unit Vector in Y (J2000)-0.866142
GCI Unit Vector in Z (J2000)-0.277717
Galactic Longitude23.82°
Galactic Latitude
-18.40°
Observational Data
Observed Visual Magnitude (V)5.07
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.002
Observed B Magnitude5.40
Observed B-V Colour+0.327
Observed B Magnitude or (B-V) Magnitude Uncertainty0.003
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.1
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeF1III
One-Dimensional Spectral ClassF0
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))

 
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Page compiled: Sun Sep 02 13:15:50 GMT+01:00 2001
 
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