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CatEntry3 Structure
Catalogue entry structure

Namespace: ASCOM.Astrometry
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: (
public struct CatEntry3

The CatEntry3 type exposes the following members.

Public methodToString
Returns the fully qualified type name of this instance.
(Inherited from ValueType.)
Public fieldCatalog
3-character catalog designator.
Public fieldDec
ICRS declination (degrees)
Public fieldParallax
Parallax (milli-arcseconds)
Public fieldProMoDec
ICRS proper motion in declination (milliarcseconds/year)
Public fieldProMoRA
ICRS proper motion in right ascension (milliarcseconds/year)
Public fieldRA
ICRS right ascension (hours)
Public fieldRadialVelocity
Radial velocity (km/s)
Public fieldStarName
Name of celestial object. (maximum 50 characters)
Public fieldStarNumber
Integer identifier assigned to object.
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