Reply To: Supernova in M101 !

Forums Variable Stars Supernova in M101 ! Reply To: Supernova in M101 !

Kwong Man

What is the V filter I read on earlier?
I want to do photometry on this. Do you need a really high focal length telescope e.g. C11 or can you do it with smaller lower focal length refractors?
Can you use a h-alpha filter 7nm bandwidth and do useful photometry ? as I am in a light pollution area.