palRvlsrk palRvlsrk - Velocity component in a given direction due to the Sun's motion with respect to an adopted kinematic Local Standard of Rest

Description:
This function returns the velocity component in a given direction due to the Sun's motion with respect to an adopted kinematic Local Standard of Rest. The result is $+$ve when the Sun is receding from the given point on the sky.

Invocation:
double palRvlsrk( double r2000, double d2000 )

Arguments:

r2000 = double (Given)
J2000.0 mean RA (radians)
d2000 = double (Given)
J2000.0 mean Dec (radians)

Returned Value:

Component of "standard" solar motion in direction R2000,D2000 (km/s).

Notes:

Reference