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Old 13-10-2021, 01:03 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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Quote:
Originally Posted by ausastronomer View Post
Hi Greg,

You need reasonable aperture over 10" and obviously the bigger the better, but at least as important is good seeing and a well cooled and collimated telescope.

I've done down to I in my 14" and 18" scopes several times, and reasonably common in the 25" Obsession. One night at Coona under superb conditions with the 25" and a 12mm Nagler, I had "stars everywhere". I am only familiar with them down to "I" and had no finder chart, so not sure what was what, but easily the best view I have ever had of the trap.

Cheers
John B
Wow, sounds like a very memorable experience. I've never owned a Dob and I am interested in getting one. What would you recommend? I am thinking around the 12 inch size and not too heavy.

Greg.
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