Recent content by Daniel P

Ohh ok now i have the right result! i forgot the ("Pi/180"):eek: Tthank you very much!

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...