Astronomy
Constellations - Scorpius - xi Sco (Grafias)

 
Identification Data
Common NameGrafias
ConstellationScorpius
Star Namexi Sco
Skymap Number16040068
Henry Draper (HD) Number144069
Harvard Revised (HR) Number5978
SAO Number159665
Durchmusterung (DM) NumberSD-10 4237
Washington Double Stars (WDS) Number
16044-1122
Positional Data
Position and Proper Motion (PPM) Number231150
Right Ascension (RA) J200016h 4m 22.136s
Declination (Dec) J2000-11° 22' 22.993"
Position Uncertainty0.0857s
Proper Motion in RA (J2000)/cos(Dec)-0.0043
Proper Motion in Dec (J2000)-0.028 16
Radial Velocity-029.km s-1
Trigonometric Parallax+0.03410s
Trigonometric Parallax Uncertainty0.0040s
GCI Unit Vector in X (J2000)-0.473909
GCI Unit Vector in Y (J2000)-0.858210
GCI Unit Vector in Z (J2000)-0.197196
Galactic Longitude0.03°
Galactic Latitude
29.42°
Observational Data
Observed Visual Magnitude (V)4.23
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.004
Observed B Magnitude4.69
Observed B-V Colour+0.456
Observed B Magnitude or (B-V) Magnitude Uncertainty0.005
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude3.4
Observed Photographic Magnitude5.3
Morgan Keenan (MK) Spectral TypeF5IV+F5IV
One-Dimensional Spectral ClassF8
Position Angle48
Year of Observation1990. 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