Hello, I present an image of more than 3.5 hour of Ursa Minor. This region is not shot very often.
If I did this, it is to show the IFN inside the constellation. IFN are high galactic latitude nebulae that are illuminated not by a single star (as most nebula in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way.
It is then very difficult to see them as they are faint.