Obscure Objects According to SGL and CN

Difficulty: extremely difficult

Points: 5000 Object Bonus: 49

I recently asked my friends at Stargazer's lounge and Cloudy Nights what their favourite obscure objects were. Whether I meant "obscure" to mean hard to find, or as in little known, it didn't seem to matter. I got plenty of replies.

So here is a list compiled from suggestions on both sites. Each object will have a good bonus, and if you manage to observe all of them, you'll get an ever bigger one!