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| Catalogue and alternative designations |
NGC 6888, Crescent nebula, Caldwell 27, Sharpless 105 |
| Type | Emission Nebula |
| Position | 20 12.0, +38 21 |
| Constellation | Cygnus |
| Camera and Telescope | QSI 583 WSG, 20cm Maksutov Newtonian courtesy Dean Salman |
| Focal Ratio | F4 |
| Exposure Details | HaRGB 300:180:180:180 with Astrodon series 2 filters |
| Description | A
much studied emission nebula 18'
x 12' in size and at about 5000
light years distance. The nebula
is being energised by the Wolf
Rayet star WR 136 which is the
bright star at the centre of the
nebula.
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