NGC 456 with higher resolution

 

 

 

This image is a higher resolution version of my previous one taken, with a different equipment, in 2015.

NGC 456 is an emission nebula located in the Small Magellanic Cloud, in the constellation Tucana. NGC 456 is the reddish-white nebula located at the right of the center of this image. Just to its upper left, there is another similar (but much smaller) nebula (the reddish LHA 115-N83C, the only supernova remnant in this area). This narrowband image has been processed coding Halpha to Red and OIII to both green and blue (white means broadband emission, as both filters get a similar image density). This image is rather deep, showing rarely seen details, especially of the faint nebulosities around NGC 456 and the round HII patch at the lower right of NGC 456. This circle-shaped HII emission region contains two open clusters, IC1662, the one located to the upper centre of the circle and Lindsay 93, the one located to the lower right of the same circle. This “circle”, despite its resemblance with a supernova remnant, SNR, it was discarded as such by the results of a survey conducted in 2003 by Bolatto et al. when no specific signal was detected in this area.

This image is another result of the ongoing (since end of 2022) collaboration with Christian Sasse.

 

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