Please note that at the 11 o'clock position, one is left with the impression that the "urn" has a "spout" and material is flowing out. Studies have confirmed this "shell rupture" and which extends up to 30' to the east and past the main shell (see http://adsabs.harvard.edu/abs/1997AJ....113..767F ). Also of interest is the stronger O-III emission on the western section of the shell which I detected in my exposures and which coincides with scientific findings and is believed to represent "large-scale, incomplete shock cooling" (again, see http://adsabs.harvard.edu/abs/1997AJ....113..767F ).
Similarly, the greater contrast of the southern half of CTB 1 is consistent with scientific findings and which has been linked to the various dust clouds in the immediate area and also visible in my image. Finally, there is a neutron star in the immediate area and which I am working on its precise identification and location (see http://iopscience.iop.org/1538-4357/455 ... .text.html ). For a rich survey of academic literature related to CTB 1, please see http://www.mrao.cam.ac.uk/surveys/snrs/ ... 9+0.2.html .
This particular SNR is one of the holy grails of amateur astronomy (ex.
http://www.astronomy-mall.com/Adventure ... e/ctb1.htm ) and is a most-difficult target for imagers as well owing to a very dim magnitude spread over a diameter of 35.2 arc-minutes.
Further details in relation to this result are available on my website at http://www.perseus.gr/Astro-DSO-Nebulae ... B-1-NB.htm .
http://www.perseus.gr/Images/dso-nebula ... -hires.jpg (for much higher resolution)
