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Sh2-54
Sh2-54 in Serpens Cauda. Seems to be a rarely imaged object that lies a few deg north of M16. Its is quite large so this mainly shows the brighter areas. The open cluster NGC6604 appears high and central in the image as a small 1' wide group of stars.
Take over 3 nights with ASI1600MM Pro camera, Stellarvue SVR102T scope at f5.7, Orion AZ-EQ G mount, ZWO OAG and QHY5IIIc guide camera. ZWO filter wheel with Astrodon 36mm NB filters (Ha 5nm, SII and OII at 3nm). Guiding with PHD2 in multi star mode, acquisition via SGP. Processing in Pixinsight with a bit of Topaz Denoise.
All 10 minutes exposures with 8 x Ha, 15 x SII and 17 x OIII. Probably needs more data especially in OIII.
Malcolm
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