SLA_RVLG

RV Corrn to Local Group

ACTION:
Velocity component in a given direction due to the combination of the rotation of the Galaxy and the motion of the Galaxy relative to the mean motion of the local group.
CALL:
R = sla_RVLG (R2000, D2000)
GIVEN:

R2000,D2000

R

J2000.0 mean [α, δ] (radians)


RETURNED:

sla_RVLG

R

Component of solar (n.b.) motion in direction R2000,D2000 (km s−1)


NOTE:
Sign convention: the result is positive when the Sun is receding from the given point on the sky.
REFERENCE:
IAU Trans. 1976. 16B, p201.