View Single Post
  #19  
Old 14-11-2018, 09:31 AM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,111
Quote:
Originally Posted by RickS View Post
And there are astronomers doing science with a tiny Dragonfly array that can't be done on 50-100 meter scopes. I'm saying it's not as simple as big aperture good, small aperture bad. Try to keep up, Peter



Small scope + big pixels = motorbike?
I’m well aware of the Dragonfly array (they use SBIG cameras after all ) but the system’s magnitude limit has been slowly increased by effectively *increasing its aperture* (by adding additional lenses to the array) while keeping its f-ratio constant.

Also, while it is great at detecting very dim very extended flux sources, it also has very ordinary resolution. Sadly, no free lunch.
Reply With Quote