Nebulosity in Pegasus

Was looking at the surroundings of a galaxy I encountered in GalaxyZoo and found this

http://legacysurvey.org/viewer?ra=347.2682&dec=18.5538&zoom=11&layer=sdssco

The browser has no labels for the nebulous objects in the area. Anyone has more info?

This is in the Pegasus constellation, above the star Markab (Alpha Pegasi).

Thanks