In the constellation of queen Cassiopeia among Milky Way stars there is one of many H II regions called Pacman Nebula for its resemblance of the video game character.
Nebula has symbol NGC281. It was discovered in 1883 by E.E. Barnard, who described it as “a large faint nebula, very diffuse”. The nebula is visible in amateur telescopes under dark sky.
NGC281 is a star formation region. Inside there is young open star cluster IC1590 that contains hot, blue stars. It is placed about 9500 light years from Earth in Perseus spiral arm of our Galaxy. The largest Bok globule in Pacman nebula is about 2.6 light years large.
Another one is close up of some Bok globules: