IFN structures found in the nebula called the Volcano in Ursa Major. The brighter, blue star in the image is d (24) Ursae Majoris. The Integrated Flux Nebulae are high galactic latitude nebulae illuminated by the milky way itself, as opposed to reflection nebulae that are reflecting the light of nearby stars. In addition to scattering blue light from the galaxy, the IFN are also fluorescing faint in red, a phenomena called Extended Red Emission. According to the Mandel-Wilson Catalogue of Unexplored Nebulae, this particular nebula is called MW3
Optics: Epsilon 180ed 8" f/2.8
Camera: QSI 583wsg
Guider: Lodestar via OAG
Mount: EM-200 Temma 2m
Exposure: L=30x600s, R=8x600s, G=8x600s, B=8x600s +Darks, Flats
Total integration time: 9hrs
Filter: Astrodon LRGB Gen II
Processed in Pixinsight
Shot from Bjarkebu Observatory near Ytre Enebakk/Norway, March 2015