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ASTRO: Recently discovered "Cygnus Bubble Nebula" in Halpha
Just yesterday I became aware of a new "bubble nebula" in Cygnus near the
Crescent. It is so perfectly round with such a well defined border that it really looked like a plate defect in the discovery shot. I imaged it last night at 0.41"/ pixel using the 18" f/12.6 classical cassegrain (F=5760mm), the FLI Proline 9000 and the Baader Planetarium 50 x 50 mm square Halpha filter The total exposure time was 10 x 20 minutes or 3 hours 20 minutes http://www.narrowbandimaging.com/cbu...er_ha_page.htm Perhaps I can get a chance to shoot some other emission line filters in the near future..... I looked at my old widefield from 2004 and reprocessed it a bit to better highlight it. Unfortunately it is a coarse image scale but it is definitely there |
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ASTRO: Recently discovered "Cygnus Bubble Nebula" in Halpha
Richard Crisp wrote: Just yesterday I became aware of a new "bubble nebula" in Cygnus near the Crescent. It is so perfectly round with such a well defined border that it really looked like a plate defect in the discovery shot. I imaged it last night at 0.41"/ pixel using the 18" f/12.6 classical cassegrain (F=5760mm), the FLI Proline 9000 and the Baader Planetarium 50 x 50 mm square Halpha filter The total exposure time was 10 x 20 minutes or 3 hours 20 minutes http://www.narrowbandimaging.com/cbu...er_ha_page.htm Perhaps I can get a chance to shoot some other emission line filters in the near future..... I looked at my old widefield from 2004 and reprocessed it a bit to better highlight it. Unfortunately it is a coarse image scale but it is definitely there I was wondering when you'd be taking a shot of it. Also I've heard McNeil's nebula has again reappeared. I can't get to it as yet due to trees and tons of clouds. It's just too low for my seeing as well. Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
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ASTRO: Recently discovered "Cygnus Bubble Nebula" in Halpha
Great image Richard.
Unfortunately my rooftop terrace is to the southeast, so I can't do long series on anything in Cygnus any more this year. I might try next year, but I definately get less signal in Halpha than you do, so it might be a tough target... Stefan "Richard Crisp" schrieb im Newsbeitrag ... Just yesterday I became aware of a new "bubble nebula" in Cygnus near the Crescent. It is so perfectly round with such a well defined border that it really looked like a plate defect in the discovery shot. I imaged it last night at 0.41"/ pixel using the 18" f/12.6 classical cassegrain (F=5760mm), the FLI Proline 9000 and the Baader Planetarium 50 x 50 mm square Halpha filter The total exposure time was 10 x 20 minutes or 3 hours 20 minutes http://www.narrowbandimaging.com/cbu...er_ha_page.htm Perhaps I can get a chance to shoot some other emission line filters in the near future..... I looked at my old widefield from 2004 and reprocessed it a bit to better highlight it. Unfortunately it is a coarse image scale but it is definitely there |
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