Bad Astronomy | A new nebula, StDr 56, has been discovered, but what is it?
Zoom In StDr 56, a possible planetary nebula in the constellation of Triangulum. It’s about the same size as the full Moon on the sky. Credit: Robert Pölz, Marcel Drechsler, Xavier Strottner See? I told you. Absolutely breathtaking. But... what is it? The quick version is, I don't know. The slightly more lengthy version is, it's a nebula, and probably a planetary nebula, but I have never seen one like this, and there are some baffling aspects of it I cannot explain. StDr 56 was discovered by amateur astronomers Marcel Drechsler and Xavier Strottner, who comb through surveys of the sky loo...
Source: syfy.com