SH2-311 - An emission nebula in Puppis.
This image is a color composite consisting of a stack of 8 eight minute exposures taken through a Hydrogen-α filter.
The images were acquired using an SBIG ST-10 CCD camera through a Tele Vue NP-101 101mm f/5.4 refractor.
The exposures were stacked and a Sigmoid Scaling of the luminance channel was performed using AIP4WIN V2.2.0.
This image has been resampled from its original size of 2184x1472.