NGC 2392, the Clown Face or Lion Nebula in Gemini; My Sketch from winter of 2017. 

My purpose here is  to get more of you looking up and observing Planetary Nebula. They are some of the most beautiful objects in our night sky and they represent the end stages of a main sequence star like our Sun, one that is between 0.4 to 8 solar masses and is at the end stage of life. I guess I love them for a couple of reasons. They are the opposite of my other favorite objects, Supernova Remnant which is the leftover of a massive star that went supernova and basically destroyed itself, leaving in most of their cases, a neutron star. 

So I'll show you what I have done here. I broke the Astronomical League's Program into seasons. It is NOT perfect. Some objects probably need to go in another season or could. If you find such, please let me know by making recommendations in comments or by contacting me. I'm not the type that is set on anything and will always make adjustments if the logic is good and sound. 

I've also included my own observation, or as most show, Steve Gottlieb's 

Anyway, they are in both a Google Sheet and Doc format. I"ll include them both in the links below. I'll also attach as either a PDF or a Excel Doc also if that helps.  

To get the full copy of the Google Doc, Sheet or the PDF or Excel version, please head over to Eadsy Astronomy at this LINK. The links and attachements are at the bottom of the post.