CatEntry3 Structure
Catalogue entry structure

Namespace: ASCOM.Astrometry
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: (


public struct CatEntry3
Visual Basic
Public Structure CatEntry3
Visual C++
public value class CatEntry3


Basic astrometric data for any celestial object located outside the solar system; the catalog data for a star.

This structure is identical to the NOVAS2 CatEntry structure expect that, for some reason, the StarName and Catalog fields have been swapped in the NOVAS3 structure.

Please note that some units have changed from those used in NOVAS2 as follows:

  • proper motion in right ascension: from seconds per century to milliarcseconds per year
  • proper motion in declination: from arcseconds per century to milliarcseconds per year
  • parallax: from arcseconds to milliarcseconds

See Also