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Astronomy
Constellations - Virgo - 87 Vir

 
Identification Data
Common Name
ConstellationVirgo
Star Name87 Vir
Skymap Number13470074
Henry Draper (HD) Number120052
Harvard Revised (HR) Number5181
SAO Number158165
Durchmusterung (DM) NumberSD-17 3932
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number227850
Right Ascension (RA) J200013h 47m 25.391s
Declination (Dec) J2000-17° 51' 35.420"
Position Uncertainty0.0101s
Proper Motion in RA (J2000)/cos(Dec)+0.00426
Proper Motion in Dec (J2000)-0.031066
Radial Velocity+064.2km s-1
Trigonometric Parallax+0.00513s
Trigonometric Parallax Uncertainty0.00076s
GCI Unit Vector in X (J2000)-0.849153
GCI Unit Vector in Y (J2000)-0.429977
GCI Unit Vector in Z (J2000)-0.306690
Galactic Longitude321.29°
Galactic Latitude
43.01°
Observational Data
Observed Visual Magnitude (V)5.42
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.007
Observed B Magnitude7.01
Observed B-V Colour+1.589
Observed B Magnitude or (B-V) Magnitude Uncertainty0.011
Observed U Magnitude
Observed U-B Colour
Observed U Magnitude or (U-B) Magnitude Uncertainty
Observed Photovisual Magnitude5.2
Observed Photographic Magnitude7.1
Morgan Keenan (MK) Spectral TypeM2III
One-Dimensional Spectral ClassM0
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))

 
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Page compiled: Sun Sep 02 13:15:53 GMT+01:00 2001
 
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