Sh2-221. a supernova remnant in Auriga (Metsavainio)

Image of the day 01/29/2014

Sh2-221. a supernova remnant in Auriga

Link: http://www.astroanarchy.blogspot.fi/2014/01/sh2-221-supernova-remnant-in-auriga.html

Hi,

This was one of the most difficult targets I have done so far. Supernova remnant Sh2-221, SNR G160.4+02.8, HB9, locates in constellation Auriga and has an angular dimensions about 2.5 x over 3 degrees. I never seen or red about the extended ionized Oxygen area, visible in my image as blue.

About 33h of exposures with extremely fast camera optics, Canon EF 200mm [email protected], was needed for this image. Total exposure time for the mosaic image, with a Planetary Nebula Sh2-216 is about 58h.

This could be the very first narrow band color image in the world out of this target. Generally, there are very few images of it. I couldn't find an other image showing the whole remnant nor other channels, than H-a. I have shot this area before but at the time part of the Sh2-221 was missing. This new image of mine is much more accurate and deep.

More info, more images and technical details in my blog. Please, use a link under the image above.

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Image of the day 01/29/2014

Sh2-221. a supernova remnant in Auriga

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Image of the day 01/29/2014

Sh2-221. a supernova remnant in Auriga

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