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Astronomy
Constellations - Sagitta - 9 Sge

 
Identification Data
Common Name
ConstellationSagitta
Star Name9 Sge
Skymap Number19520096
Henry Draper (HD) Number188001
Harvard Revised (HR) Number7574
SAO Number105360
Durchmusterung (DM) NumberBD+18 4276
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number137126
Right Ascension (RA) J200019h 52m 21.765s
Declination (Dec) J2000+18° 40' 18.749"
Position Uncertainty0.0054s
Proper Motion in RA (J2000)/cos(Dec)-0.00001
Proper Motion in Dec (J2000)-0.010566
Radial Velocity+010.4km s-1
Trigonometric Parallax+0.00023s
Trigonometric Parallax Uncertainty0.00070s
GCI Unit Vector in X (J2000)0.446086
GCI Unit Vector in Y (J2000)-0.835771
GCI Unit Vector in Z (J2000)0.320148
Galactic Longitude56.49°
Galactic Latitude
-4.33°
Observational Data
Observed Visual Magnitude (V)6.25
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.21
Observed B-V Colour-0.036
Observed B Magnitude or (B-V) Magnitude Uncertainty0.004
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude6.3
Observed Photographic Magnitude6.1
Morgan Keenan (MK) Spectral TypeO7.5Iaf
One-Dimensional Spectral ClassO0
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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