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Astronomy
Constellations - Saggitarius - 38zet Sgr (Ascella)

 
Identification Data
Common NameAscella
ConstellationSaggitarius
Star Name38zet Sgr
Skymap Number19020136
Henry Draper (HD) Number176687
Harvard Revised (HR) Number7194
SAO Number187600
Durchmusterung (DM) NumberCD-3016575
Washington Double Stars (WDS) Number
19026-2953
Positional Data
Position and Proper Motion (PPM) Number269230
Right Ascension (RA) J200019h 2m 36.713s
Declination (Dec) J2000-29° 52' 48.379"
Position Uncertainty0.0290s
Proper Motion in RA (J2000)/cos(Dec)-0.00108
Proper Motion in Dec (J2000)+0.003767
Radial Velocity+022.0km s-1
Trigonometric Parallax+0.03661s
Trigonometric Parallax Uncertainty0.00137s
GCI Unit Vector in X (J2000)0.233944
GCI Unit Vector in Y (J2000)-0.834913
GCI Unit Vector in Z (J2000)-0.498187
Galactic Longitude6.85°
Galactic Latitude
-15.35°
Observational Data
Observed Visual Magnitude (V)2.61
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude2.71
Observed B-V Colour+0.099
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 Magnitude2.7
Observed Photographic Magnitude2.8
Morgan Keenan (MK) Spectral TypeA2III+A4IV
One-Dimensional Spectral ClassA2
Position Angle
Year of Observation1994. 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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