Astronomy
Constellations - Scorpius - 4 Sco

 
Identification Data
Common Name
ConstellationScorpius
Star Name4 Sco
Skymap Number15550077
Henry Draper (HD) Number142445
Harvard Revised (HR) Number5917
SAO Number183931
Durchmusterung (DM) NumberCD-2511190
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number264865
Right Ascension (RA) J200015h 55m 30.079s
Declination (Dec) J2000-26° 15' 57.577"
Position Uncertainty0.0097s
Proper Motion in RA (J2000)/cos(Dec)-0.00260
Proper Motion in Dec (J2000)-0.029966
Radial Velocity-005.0km s-1
Trigonometric Parallax+0.00755s
Trigonometric Parallax Uncertainty0.00093s
GCI Unit Vector in X (J2000)-0.463531
GCI Unit Vector in Y (J2000)-0.767657
GCI Unit Vector in Z (J2000)-0.442539
Galactic Longitude346.53°
Galactic Latitude
20.64°
Observational Data
Observed Visual Magnitude (V)5.63
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.76
Observed B-V Colour+0.134
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 Magnitude5.5
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeA3V
One-Dimensional Spectral ClassA2
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))

 
Page compiled: Sun Sep 02 13:15:49 GMT+01:00 2001