Hi to all, here I am with another image taken last months with the TEC 140. This time it is a very seldom imaged object in Canis Major, Sharpless 308.
Despite this nebula is a giant bubble larger than the full Moon and very conveniently located for southern observers (it passes almost at the zenith), I found very little images around the net, one of those the fantastic image taken by Don Goldman that gave him an APOD some time ago. I believe this is the first post of this object in this group if I am not wrong..
Here is the link:
http://www.glitteringlights.com/Imag..._JWP4WRj-X3-LB
Again this is a combination of narrow band filters and RGB colors (I don't like mapped color images) and here the contribution of the OIII filter is essential. Unfortunately I was not able to collect as many subframes as I wanted, in particular for the OIII, this because of the set up problems I have already mentioned before. Therefore this image is much noisier that I wanted.
Total exposure was a little over 15 hours.
I suggest the view of the zoomify version to full resolution at full screen. If you use firefox 5 you will also enjoy the color management (the color profile is embedded in the images.
Hope you will like this image. I really hope that somebody of you with larger telescopes will give this nebula justice next winter
Clear Skies
Marco