Sh2-115 is an emission nebula placed about 2.5 ° northwest of Deneb.
It is an HII region with an apparent extension of 50'x50 'and an estimated distance of 7500 light years.
At the top right we see a round-shaped nebula: it is Sh2-116, considered for a long time a planetary nebula due to its shape, then a 1991 study made it clear that it is actually an emission nebula.
Optic Tecnosky Apo Triplet 115 - 800mm f/7
Mount Losmandy G11 with FS2
Camera Atik 4000 with Starlight Xpress filter wheel 5 positions
Filters Baader Ha 7nm unmounted
Guiding system TSOAG 9mm with Lodestar
Exposure details 17x900", bin1 -10C
Total integration 4.2h
Acquisition Maxim DL, PHD
Processing Maxim DL, Photoshop CS5
Location Home terrace (Rescaldina, Italy)
Date 30 July 2013