"Planetary" nebulae got that name from their often greenish appearance through a telescope - like a fuzzy Uranus or Neptune. You wouldn't confuse THIS nebula with a gas giant planet, though. From our vantage point, it appears to be square!
Get on the APOD PING list! 
Our grandchildren are enjoying this as much as we do. I e-mail these to them. What fun!!! Thanks!!
Summer, I don't know if you know about this thread.. but it is just amazing. If not, ask petuniasevan to add you to her ping list. You will NOT be sorry!!!
FRegards!!