NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20×30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1.

Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character. Edward Emerson Barnard discovered the nebula in August 1883, describing it as "a large faint nebula, very diffuse."

Multiple star 'B 1' or β 1 was later discovered by S. W. Burnham, whose bright component is identified as the highly luminous O6 spectral class star, HD 5005 or HIP 4121. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 arcsec.

There has been no appreciable change in this quintuple system since the first measures were made in 1875.The nebula region is visible in amateur telescopes from dark sky locations.

In his book Deep Sky Wonders, Walter Scott Houston describes the appearance of the nebula in small telescopes:
"There was a faint glow in the immediate vicinity of the multiple star, with an occasional impression of a much larger nebulosity...Its surface brightness was much less than that of M33 in Triangulum or NGC 205, the distant companion of the Andromeda galaxy."
[Source:  Wikipedia].

The image was captured with the iOptron CEM120 mount , the TMB80SS F6.3 Refractor coupled with an Orion Field Flattener , and my old Canon 450D XSi camera.

All subs were taken a ISO1600 and 300s each.  All were done at ambient temperature that varied between 25C and 30C.

IMAGE information -- 2021
Subs (ISO1600, 300s): 170 subs (14.17hr) on Oct 5th and 6th.

Processing was done with PixInsight, following reasonably good practices I’ve developed over the years.

COMMENTS:
This is an OK image considering the use of my old trusty Canon 450D XSi with 14.17 hours of integration time. 

My trusty Atik 383L+mono CCD camera is still lost.  I contacted USPS a few days ago and they opened an inquiry into the lost camera.  USPS actually called me yesterday (Oct 5, 2021) to tell me they were working on it.

I also ordered a new QHY294M Pro cmos camera from High Point Scientific, but there’s no telling when that item will come available.