Hi
now i have seen that i must convert α = 14.2612 Hours in degrees (=213.915°)! So far so good!
but if i calculate Vx = -5.19*COS(19.1873)*COS(213.915)-(-58.34*SIN(213.915))-(-106.6*SIN(19.1873)*COS(213.915)) = +45.7 instead -57.7 Km/sec.
and if i calculate Vy =...
Hi
I have a question about "proper motion of stars".
At this page (http://www.astronexus.com/a-a/motions-long-term) there are a lot of examples how you can measuring the proper motion of stars.
But at "Point 4 - Turn these velocities into Cartesian velocities" i have some different results...