Saturday, Aug 16, 2025

Sh2-115 is an emission nebula visible in the constellation Cygnus. It is a large, oval-shaped H II region crossed from northwest to southeast by a dark band that apparently divides it into two equal parts: the eastern part is dominated by a small open cluster, known as Berkeley 90. Instrumentation: - SkyWatcher HEQ 5 mount - Takahashi Sky 90 telescope - Asi 2600 mc Pro camera - SVBony 30/120 guide scope - Asi 224 guide camera - Antlia RGB filter - Asi Air Plus Shooting data: Light 61x300”, DarkFlat 31, Dark 15, Bias 31 Processing: Pixinsight & Photoshop Poilino (TR), July 30, 2025