In December 2023, Spanish Amateur Astronomer AleixRoig discovered a new [OIII] emission nebula in the outer regions of Messier 33 [DOI 10.3847/2515-5172/ad12d1]. He named is "Roig1 Prades Sky".

Last new moon I gave it a try with my 27-inch and the nebula was clearly visible as a longish smudge with [OIII] filter. So, this new nebula is also accessible for us visuals and I think it also could be a target for the 20-inch class.

sketch: 27", 234x, [OIII], NELM 7m0+, Seeing IV
Roig1.jpg
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