Other regions to maybe look at

[will-henney]

This thread is to add a list of other H II regions (outside of Orion) that have interesting globules and/or photoevaporation flows.

[will-henney]

California nebula (NGC 1499)

This is ionized by xi Persei - O7.5III(n)((f)) - and is at a distance of about 380 pc and Galactic coordinates (l, b) = (160, -12). Just the other side of the anticenter from Orion.

It has a nice mid-infrared bow shock close to the star:

It has VTSS H alpha imaging too.

Position relative to Orion

[will-henney]

Pismis 24

This is a high mass star cluster in the NGC 6357 nebula in Scorpius. It is in the inner Galaxy at a distance of about 2 kpc. The dominant star is Wolf Rayet WC7

It has a nice edge-on geometry with a wind bubble that holds back a photoevaporation flow. At least, that is what it looks like.

On a larger scale, there are many other clusters in the nebula. Some have hot gas bubblse (x-ray emission shown as purple in this image)