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This immense emission nebula comprises hydrogen gas excited by UV light from nearby star Deneb. It bears a resemblance to continental North America and covers such an expanse of the sky that the Moon would fit into the “Gulf of Mexico”. Open clusters Collinder 428 and NGC 6997 are marked. The denser area of HII towards the bottom is known as “the wall”. Just beside it is an obscuring patch of dust and cold gas, dark nebula LDN 935.
This object is very difficult to see with a backyard scope in a light polluted town but photography really helps it stand out.
Taken during 26th August session.
12 x 2 (24 min integration) min exposures. 480/80mm f6 refractor with 1.0x field flattener. Ioptron ZEQ25GT mount.
Canon 60Da DSLR @ ISO 1600 with Astronomik CLS filter. Acquired with Backyard EOS and guided with Orion SSAG Autoguider/PHD software. Processed in Pixinsight 1.8 and Photoshop CC.