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Jeremy Perez
Carpal Tunnel
Reged: 08/12/04
Posts: 1677
Loc: Flagstaff, Arizona, USA
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Re: Wading Through Some Summer Planetaries
07/31/08 05:35 PM Attachment (15 downloads)
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M76 - The Little Dumbbell
In preparation for an upcoming project, I made a new observation of this interesting little planetary nebula. I noticed no color in it. The southern lobe was the brightest. Both lobes were brightest at their outer apexes. The bright portion of the northern lobe seemed to have a bit of a hollow along its inner edge. I spent a lot of time glued onto the eyepiece, looking for the lateral extensions that this nebula possesses. As I grew better adapted, and spent time with the view, the east and west sides of the bright, inner dumbbell showed a soft glow. This extended outward nearly the same width as the inner portion of the nebula on each side. The western extension appeared to have a slightly brighter whisp along its northern edge that peeled away from the northern dumbbell lobe. The eastern extension was brighter along its southern side--this brighter area was not as slender as the northwestern streak. In comparison to the main body of the nebula, these extensions were very subtle, and would be easy to miss. If you have a dark, transparent sky, try giving this nebula a long, focused look and see if they show up for you.
The full report and larger sketch can be found here: M76.
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