Lower's nebula
Lower's nebula is an emission nebula in Orion. It is #261 in the Sharpless catalog. In addition to hydrogen ion emissions, it is also quite strong in Sii and there is some Oiii as well.
For this image I combined 9 hours of data shot with an Optolong L-Ultimate filter on a William Optics FLT110 telescope and QHY268C camera; 3 hours of luminance data taken on the same scope and camera; 4 hours of Sii data captured with an ASI294MM camera on a WO Zenithstar 103 scope.
All post-processing was carried out in PixInsight.
Lower's nebula
Lower's nebula is an emission nebula in Orion. It is #261 in the Sharpless catalog. In addition to hydrogen ion emissions, it is also quite strong in Sii and there is some Oiii as well.
For this image I combined 9 hours of data shot with an Optolong L-Ultimate filter on a William Optics FLT110 telescope and QHY268C camera; 3 hours of luminance data taken on the same scope and camera; 4 hours of Sii data captured with an ASI294MM camera on a WO Zenithstar 103 scope.
All post-processing was carried out in PixInsight.