Sunday, July 26, 2009

M27, Planetary Nebula in July

M12 is a distant, faint globular cluster in Ophiuchus. At magnitude 8.00 this was viewed with a 10mm eyepiece. Also viewed was M23, in Sagittarius, a nicely detailed open cluster at magnitude 6.0 - best viewed with a 10mm eyepiece (object filled the entire field of view). M23 is approx. 4,500 light years from Earth. M27 is a planetary nebula found in Vulpecula. Using a 10mm eyepiece, I was able to just make out the dumbbell shape at magnitude 7.50. This nebula is about 1,250 light years away. M56 is a distant looking globular cluster in Lyra which is 40,000 light years away. I also found M71 in Sagitta, about 8,500 light years away. Difficult to view, this globular is about magnitude 8.5. Finally, I viewed M92, a globular in Hercules. Not as impressive as M13, this magnitude 7.50 object is still a worthwhile sight at 28,000 light years away.

South Barrington, IL
7/24/09
9:45-10:30pm CST
Clear - Calm
70 degrees
10"
10mm