Hello Sonia
You dont say what camera you use.
I use a canon 40dh and i am happy with astronomical image processing for windows by Richard Berry and Jim Burnell.
You get the software and the handbook , which is not a software manual but a general manual for astrophotography.
You can check it out on the willman bell website.
Cost $99 US.
The handbook alone is worth the $99. A upgrade is due soon and if you buy version 2 you get the upgrade for free.
The website allows you to download the foreword, chapter 1 and the index to check whether you want to buy or not.
Highly recommended.
Regards
Steve
