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Obs. Report: Binocular Fest
Latitude: between 45 and 46 degrees North
Instrument: hand held 8x42 and 20x80 binoculars Zenithal Naked-Eye Limiting Magnitude: 6.5 (but a little hazy near the horizon) Location: Northwestern U.S. Approximate time: 4:00 -- 7:00 UT Date: 19 August 2006 UT These days I tend to set up a telescope around sunset when no artificial light is required. Around sunset on this date a fair number of clouds were present; so I didn't set up a telescope. Later the clouds mostly vanished. Not wanting to waste a good night, I decided to do an abbreviated Messier Marathon using hand held binoculars. I started out quite casually in the south with 8x42s and 'gobbled up' M6, M7, M22, M28, M8, M20, M21, M23, M24 (very nice with binoculars!), M18 and M17. This was before deciding to get serious and go after "everything!" I switched to the north and broke out a pair of 20x80s in addition to the 8x42s. M103 and M52 were seen with both binoculars. While in the area I couldn't help but notice NGC 7789 -- big, bright, and nebulous in appearance. I found myself wondering how Messier could possibly have failed to include this open cluster in his catalog. Next were M81 and M82, visible with both binoculars. M108 and M97 were a bit low in the sky and visible only with the 20x80s. M101, M51 and M63 were visible with both binoculars. NGC 5866 (sometimes used to fill in the M102 vacancy) was visible only with the 20x80s. M110, M31, M32, M33, M29, M71, and M57 were visible with both binoculars; but M57 looked pretty much like a star in the 8x42s. Cr399 (Brocchi's Cluster, aka The Coat Hanger) was visible as a fuzzy patch to the naked eye. It was better with the 8x42s than with the narrower field 20x80s. M27, M13, M92, M55, M75, M72, M73, M30, M2, M15, M56, M39 and M34 were visible with both binoculars; but M75 was almost stellar in the 8x42s. The 20x80s resolved the stars in M73. M76 was noticeable only with the 20x80s. M74 was very difficult with the 8x42s, but clearly shown by the 20x80s. M45 was a treat with either pair of binoculars. Among the non-Messiers visited were the Veil Nebula (NGC 6992 and 6960) and the North America Nebula (NGC 7000), both visible with either pair of binoculars. The nebulous patch between NGCs 6992 and 6960 was also visible. Chi Cygni was similar in brightness to Eta Cygni. During this session I was barefoot, moving back and forth through the house between the front (north) porch and the back (south) porch while consulting charts left inside on a table. Of course, lights were off inside. At the end of the session the temperature was +55 degrees F. and my feet were beginning to feel a chill. It's probably not necessary to say; but I found the evening to be quite enjoyable! Willie R. Meghar |
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