Nath 2099,
G'day.
A talk was given at recent Combined Astronomical Societies meeting (Southeast Queensland) on this topic. I didn't attend, but was given this link to a Facebook Group page when I asked a similar question elsewhere.
https://www.facebook.com/login/?next...16771347231%2F
Also, have a look at the work of Thierry Legault at
http://www.astrophoto.fr
Cheers.