interface to the NOVAS_COM VelocityVector Class

Namespace: ASCOM.Astrometry.NOVASCOM
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: 6.0.0.0 (6.1.1.2619)

Syntax

C#
public interface IVelocityVector
Visual Basic
Public Interface IVelocityVector
Visual C++
public interface class IVelocityVector

Remarks

Objects of class VelocityVector contain vectors used for velocities (earth, sites, planets, and stars) throughout NOVAS-COM. Of course, its properties include the x, y, and z components of the velocity. Additional properties are the velocity in equatorial coordinates of right ascension dot, declination dot and radial velocity. You can initialize a PositionVector from a Star object (essentially an FK5 or HIP catalog entry) or a Site (lat/long/height). For the star object the proper motions, distance and radial velocity are used, for a site, the velocity is that of the observer with respect to the Earth's center of mass.

See Also