Hey all
yet another newbie question
I recently purchased a 90mm guide scope, and just slapped it on top of my current scope using the mounting rings that came with the scope.
The other night while i was doing my three-star alignment on my goto mount i suddenly remembered why i do a 3-star alignment, to eliminate the cone error and this led me to the thinking that perhaps slapping the guide scope haphazardly onto of the main telescope was a bad idea and perhaps the cause of me not being able to get round stars in long exposures?
Am i on the right track here? Do i need to buy guide scope rings and align my guide scope and my finder scope to the main scope? Or am i just really bad at polar alignment? Or even can i polar align/3-star align using my guide scope to eliminate this problem in my main scope?
I'm quite confused with what i'm actually doing when aligning... i just follow the steps
Thanks in advance
Scott