Object name: VDB158PK110

Designation(s): VDB158PK110, 12.1,

The large nebula extending well beyond my image is the reflection nebula LBN 111.05-12.46 aka DG 191 aka LBN 534. It is located in Cassiopeia. The B8V star HD 222142 illuminates the blue reflection nebula vdB 158. Though many consider vdB158 as the same as the far larger cloud LBN 111.05-12.46 this is incorrect from what I found. Are they two separate objects or is HD 222142 in the larger cloud but only illuminating the smaller nebula? I found only one estimate, in the Italian Wikipedia, of the distance to vdB158 saying it is about 440 parsecs away (1435 light-years). I don't know if this is meant to apply to the larger cloud or just the blue nebula around HD 222142.

Also in the image is the planetary nebula PK110-12.1 down in the lower left corner of my frame. One paper puts its distance as 13,620 light-years. I expect there are too many significant digits to that distance estimate. If correct then the nebula has a diameter of about 2.25 light-years.

There are quite a few galaxies in the image if you hunt for them. All NED lists are from the 2MASS IR survey. NED shows no redshift nor magnitude data for any of them. The majority aren't in NED being anonymous as far as I can tell.

14" LX200R @ f/10, L=7x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Related Designation(s):

12.1, VDB158PK110,