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Astronomy
Constellations - Virgo - 31 Vir

 
Identification Data
Common Name
ConstellationVirgo
Star Name31 Vir
Skymap Number12410135
Henry Draper (HD) Number110423
Harvard Revised (HR) Number4829
SAO Number119538
Durchmusterung (DM) NumberBD+07 2568
Washington Double Stars (WDS) Number
12420+0648
Positional Data
Position and Proper Motion (PPM) Number159090
Right Ascension (RA) J200012h 41m 57.117s
Declination (Dec) J2000+6° 48' 23.821"
Position Uncertainty0.0069s
Proper Motion in RA (J2000)/cos(Dec)-0.00481
Proper Motion in Dec (J2000)-0.011266
Radial Velocity+003.8km s-1
Trigonometric Parallax+0.01337s
Trigonometric Parallax Uncertainty0.00078s
GCI Unit Vector in X (J2000)-0.976363
GCI Unit Vector in Y (J2000)-0.180746
GCI Unit Vector in Z (J2000)0.118519
Galactic Longitude296.20°
Galactic Latitude
69.55°
Observational Data
Observed Visual Magnitude (V)5.58
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude5.58
Observed B-V Colour+0.001
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 Magnitude5.4
Morgan Keenan (MK) Spectral TypeA2V
One-Dimensional Spectral ClassA0
Position Angle40
Year of Observation1993. 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 13:15:52 GMT+01:00 2001
 
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