Astronomy
Constellations - Virgo - 57 Vir

 
Identification Data
Common Name
ConstellationVirgo
Star Name57 Vir
Skymap Number13150138
Henry Draper (HD) Number115202
Harvard Revised (HR) Number5001
SAO Number157823
Durchmusterung (DM) NumberSD-19 3653
Washington Double Stars (WDS) Number

Positional Data
Position and Proper Motion (PPM) Number227035
Right Ascension (RA) J200013h 15m 58.771s
Declination (Dec) J2000-19° 56' 35.171"
Position Uncertainty0.0084s
Proper Motion in RA (J2000)/cos(Dec)+0.02161
Proper Motion in Dec (J2000)-0.115466
Radial Velocity+034.2km s-1
Trigonometric Parallax+0.02568s
Trigonometric Parallax Uncertainty0.00075s
GCI Unit Vector in X (J2000)-0.888845
GCI Unit Vector in Y (J2000)-0.305965
GCI Unit Vector in Z (J2000)-0.341087
Galactic Longitude310.78°
Galactic Latitude
42.56°
Observational Data
Observed Visual Magnitude (V)5.22
Derived Visual Magnitude
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty0.003
Observed B Magnitude6.23
Observed B-V Colour+1.014
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 Magnitude5.3
Observed Photographic Magnitude
Morgan Keenan (MK) Spectral TypeK1+III-IV
One-Dimensional Spectral ClassK0
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 13:15:52 GMT+01:00 2001