Gamma Cygni Nebula (IC 1318) & Open Cluster NGC 6910
The open star cluster NGC 6910 was discovered on 17 October 1786 by the German-British astronomer Wilhelm Herschel. He cataloged it as VIII 56 (Class VIII = coarsely scattered clusters of stars) and noted: «A small cluster of coarsely scattered stars of various sizes. Extended like a forming one.»  Due to its size and low brightness the galactic nebula IC 1318 was discovered much later photographically by the American astronomer Edward Barnard in August 1893. 
NGC 6910 is a small star cluster with about 7.4 mag apparent magnitude, an angular expansion of about 8 arcminutes and the Trumpler type I2p. The distance is given by WEBDA with 1139 parsecs (around 3700 light years) and the estimated age with around 13 million years. [138, 196]
IC 1318 is a larger H-II nebula complex with emission nebulae and dark nebulae, which belongs to the large Cygnux-X star formation region.  The Gamma Cygni Nebula is the remnant of a supernova (SNR G78.2+2.1), which occurred here about 6'800-10'000 years ago and triggered the formation of new stars through this shock wave. The distance is about 1.7-2.6 kpc. The pulsar PSR J2021+4026 is located roughly in the center. The Cygnus-X area is also a source of radio and X-rays. 
|Name||RA||Dec||Type||bMag||vMag||B-V||SB||Dim||PA||z||D(z)||MD||Dreyer Description||Identification, Remarks|
|NGC 6910||20 23 12.0||+40 46 43||OCL (I2p)||7.4||10||1.139||Cl, pB, pS, P, pC, st 10…12||OCL 181|
|IC 1318||20 22 14.0||+40 15 24||EN||50 × 30||1.200||γ Cygni, surrounded by L patches of F neby||LBN 245, part of Gamma Cyg nebula|
|IC 1318 A||20 16 36.0||+41 49 00||EN||50 × 20||γ Cygni, surrounded by L patches of F neby||LBN 251, part of Gamma Cyg nebula|
|IC 1318 B||20 27 54.0||+40 00 00||EN||14.9||45 × 30||γ Cygni, surrounded by L patches of F neby||part of Gamma Cyg nebula|
As the name suggests, the Gamma Cygni Nebula (IC 1318) is located at the star γ Cygni (Sadr) in the constellation Cygnus (Swan). The best observation time is April to November.
Description pending ...