I gotta Laugh. Sorry guys, I understand Steve's humour. I saw the sarcasm for what it was!
Steve started this thread with Sharks, and we now have clowns, ducks, trolls & sponges!!!
LOL!! Good astronomical terms. For any newcomers to astronomy we are talking about Nebulas!! Honest Injun. Shark Nebula, Duck Nebula etc.
Except the Sponge.
It's a Black Hole!
If you are a newbie reading this we recommend that you don't start this hobby with the new GS 16" Dobsonian. Not for any Optical reasons, it's just that we will all be jealous!!