Where do I buy celestial binoculars in Duluth?

Astro Bob would be the excellent person to ask.  You can contact him through his blog.

Astro Bob: 
Celestial happenings you can see from your own backyard

Just leave him a comment on any of his posts, or go through the DNT and find his email addy.  I've gotten so many good answers to my star-gazing related questions.

Bob was my former boss and he is definitely THE authority on this here in town.  Dude is called Astro Bob for a reason.