Got two observation on NGC 3198 as a part of the "Rosse Spirals".
In the last observation with 14.5" and 283x I wrote: large, around 5' long NE-SW elongated galaxy; bright with estimated tightly spiral arms; easiest spiral started 1' SW of the core and turns NE without connecting the core, quickly disappearing; another spiral arm starts 1' NE without any winding, only visible as a longish brightening; from the long axis two dark structures rises into the galaxy without showing a clear spiral structure
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