Nearly 10 years later I have observed NGC 281 several times but because of its detailed structure it’s not an easy object. The nebula can be observed with UHC and OIII-filters but does not reveal the details that are known from some fotos. I decided that for me the UHC works better because it reveals more faint details than the OIII does. An interesting detail within the nebula is the round dark nebula inside that could be spot relatively easy.
Below you find a sketch with my 14 inch Dobson using an 25mm 100° eyepiece and UHC-Filter that gives me a field of 1,5°.
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