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Pestering my wife at the dining table, but this time with a Canon pancake lens. It seems that the little lens is a keeper.
My wife has some Scottish and Irish blood in her, but uses her hands to talk like a couple of Italian friends I have
I've probably posted this before. If so, the reason I am posting it again is because I took the wise advice of a very expert amateur astronomer who knows about these things and finally figured out how to bring out the very faint nebulosity without destroying the stars (particularly the very tiny ones and the very big ones). I think the stars in this image are the best ones I've done to date. Anyway, enjoy:
NGC 6888, The Crescent Nebula, In Cygnus
From the Los Vegas Astronomical Society:
... "NGC-6888, the Crescent Nebula is also known as Caldwell 27. It is an emission nebula in Cygnus and was discovered by William Herschel in 1792. It lies 5,000 light-years away and is approximately 25 light-years across. The nebula is lit up by a (massive) Wolf-Rayet star known as WR-136. The star is shedding its outer envelope in a strong stellar wind which is colliding with much slower moving gasses in this already rich nebulous region. There are two shockwaves involved. One is going in while the other is going out. One day, it is predicted that the central star will go supernova."
It is unreal that something in it's death throes could have such stunning beauty. If this star was at the location of our sun, the gas and dust cloud thrown off by it would nearly reach halfway to the star Vega, 25 light years away. It would swallow up all the nearest stars, such as Alpha Centauri, Sirius, and many others.
Image:
16 x 300sec = 80 minutes integration at ISO 800
Captured with Canon Utility software for EOS cameras, Stacked using DeepSky Stacker, processed in Straton Star removal software, and Adobe Photoshop CS3 with Astronomy Tools Plug in.
Camera:
Hutech-modified Canon T1i with a Baader MPCC coma corrector and a Baader UV/IR cut filter
Scope:
Old Yeller (modified Konus 200mm f5 Newtonian)
Image Acquisition on July 7-8, 2013 at the Louisville Astronomical Society James Baker Center for Astronomy.
Last edited by orogenicman; 07-31-2013 at 09:09 AM..
Reason: forgot the title
Found this in the front of my house. I have no idea what kind of moth this is, but I thought it was very pretty.
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NGC 6888, The Crescent Nebula, In Cygnus
