Astronomy
Constellations - Sagitta - 7del Sge

 
Identification Data
Common Name
ConstellationSagitta
Star Name7del Sge
Skymap Number19470077
Henry Draper (HD) Number187076
Harvard Revised (HR) Number7536
SAO Number105259
Durchmusterung (DM) NumberBD+18 4240
Washington Double Stars (WDS) Number
19474+1832
Positional Data
Position and Proper Motion (PPM) Number136976
Right Ascension (RA) J200019h 47m 23.259s
Declination (Dec) J2000+18° 32' 3.411"
Position Uncertainty0.0099s
Proper Motion in RA (J2000)/cos(Dec)-0.00032
Proper Motion in Dec (J2000)+0.011167
Radial Velocity+002.5km s-1
Trigonometric Parallax+0.00728s
Trigonometric Parallax Uncertainty0.00083s
GCI Unit Vector in X (J2000)0.428185
GCI Unit Vector in Y (J2000)-0.845940
GCI Unit Vector in Z (J2000)0.317872
Galactic Longitude55.77°
Galactic Latitude
-3.38°
Observational Data
Observed Visual Magnitude (V)3.83
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.14
Observed B-V Colour+1.312
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 Magnitude3.8
Observed Photographic Magnitude3.8
Morgan Keenan (MK) Spectral TypeM2II+A0V
One-Dimensional Spectral ClassA0
Position Angle
Year of Observation1985. 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