M81, M82 and the IFN

M81, M82 and the IFN

The M81 Galaxy, also called the Bode Galaxy, in honor of the scientist who discovered it, Johann Elert Bode in 1774, and the M82 Galaxy, known as the Cigar Galaxy, are located to the North in the constellation of the Big Dipper, about 12 million years ago. Light.
It is an area rich in Integrated Flow Nebulae, known as IFN for its acronym in English.
It was Esteve Mandel-Wilson who coined the term IFN and defined them as “high galactic latitude nebulae that are illuminated not by a single star (like most nebulae in the plane of the Galaxy) but by the energy of the integrated flux.” of all the stars in the Milky Way.
These nebula clouds, a major component of the interstellar medium, are composed of dust particles, hydrogen and carbon monoxide, and other elements.

Ha 40×600″
Lum 85×120″
R 109×120″
G 124×120″
B 100×120″
HaLRGB 21Hours

Telescope: Samyang135m
Camera: ZWO183MP
Mount: Eq6r-Pro