Astronomy
Constellations - Saggitarius - 42psi Sgr

 
Identification Data
Common Name
ConstellationSaggitarius
Star Name42psi Sgr
Skymap Number19150108
Henry Draper (HD) Number179950
Harvard Revised (HR) Number7292
SAO Number187882
Durchmusterung (DM) NumberCD-2513866
Washington Double Stars (WDS) Number
19155-2515
Positional Data
Position and Proper Motion (PPM) Number269531
Right Ascension (RA) J200019h 15m 32.427s
Declination (Dec) J2000-25° 15' 24.057"
Position Uncertainty0.0262s
Proper Motion in RA (J2000)/cos(Dec)+0.00351
Proper Motion in Dec (J2000)-0.031266
Radial Velocity-033.0km s-1
Trigonometric Parallax+0.00989s
Trigonometric Parallax Uncertainty0.00112s
GCI Unit Vector in X (J2000)0.292730
GCI Unit Vector in Y (J2000)-0.855721
GCI Unit Vector in Z (J2000)-0.426674
Galactic Longitude12.43°
Galactic Latitude
-16.20°
Observational Data
Observed Visual Magnitude (V)4.87
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.43
Observed B-V Colour+0.564
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 Magnitude4.2
Observed Photographic Magnitude5.4
Morgan Keenan (MK) Spectral TypeG8:III+A8V
One-Dimensional Spectral ClassF5
Position Angle
Year of Observation1991. 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