Yikes. It's been almost two months since my last post. Have I been that busy on other things? Why, YES. Work, gardening, my retirement business, church activities and a new puppy. Now that's a lot of things keeping me busy.
Cloudy skies for most of the time made imaging a real challenge. But I did get in a few objects; just took awhile to find the time to process them. Turns out that a recent image run is what I processed first. So here it is: the Eastern Veil nebula and a starless cropped close up of the section known as the 'Bat'.
The Eastern Veil Nebula is part of the larger Veil Nebula, a cloud of ionized gas and dust. It is located in the constellation Cygnus the Swan. This object is actually the visible portion of the much larger Cygnus Loop, which itself is a supernova remnant.
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| Eastern Veil - GT102/ASI2600 - f/5.6 August 19, 30 and 31, 2022 46x300sec Ha; 46x300sec Oiii; 20x60sec RGB |
The star that was the source of the supernova weighed in at 20 times more massive than the Sun and exploded some 10,000 to 20,000 years ago. If you were living at that time you would have seen an object in the daytime sky that would have been brighter than the planet Venus. During the 20,000 years since the explosion the remnants of that star have now expanded to an area roughly 3 degrees in diameter (six times the size of the Moon). It is estimated to be about 2,400 light-years distant.
This rendition is a combination of the Ha and Oiii narrowband (HOO) palette combined with RGB stars. A total of 8 hours integration of the narrowband and 1 hour for the stars.
The lower section of the nebula is known as the 'Bat'. I cropped the original NB image to capture just the Bat and removed the stars to produce a starless version. I generally don't like starless astrophotos but this nebula looks pretty good when portrayed starless.
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| The "Bat" |
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