Object name: SH2

Designation(s): SH2, 140_LBN505,

Sh2-140 is an emission nebula in Cepheus. One distance estimate I found puts it about 2900 light-years from us. The illuminating star is the brightest one in my image a bit to the lower right of center. It is actually a double star that my ham handed processing years ago has turned into one big blob. I do need to reprocess this one. The star is HD 211880. It has a mass of about 35 suns. SIMBAD shows it as a B0.5V star. Oddly SIMBAD classifies this object as an open cluster rather than an emission nebula. Most images of this nebula are done using narrow band filters though I used pure RGB for it.

14" LX200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME