File:NGC6914-Nebula-complex-Cygnus.jpg
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Captions
Captions
Reflection and Emission Nebulae in Cygnus
Summary[edit]
| Description |
English: This complex of reflection nebulae lies some 6,000 light-years away, in the constellation Cygnus.Obscuring interstellar dust clouds appear in silhouette against reddish hydrogen emission nebulae, along with the dusty blue reflection nebulae. Ultraviolet radiation from the massive, hot, young stars of the extensive Cygnus OB2 association ionize the region's atomic hydrogen gas, producing the characteristic red glow as protons and electrons recombine. Embedded Cygnus OB2 stars also provide the blue starlight strongly reflected by the dust clouds.
Telescope: Esprit 100 APO refractor. Camera: QHY16200 CCD @-10 (RGB) and -20C (Ha). 28x 300sec Red filter 24x 300sec Green filter 28x 300sec Blue filter 23x 900sec H-alpha filter (6nm) (12.4 hrs total integration time) Ha Imaged on 20/5, 8/6, 27/7,28/7,30/7 2017. RGB Imaged on 4/4, 5/4, 28/7, 29/7 2019. Processed with AstroPixelProcessor and Pixinsight. Knight Observatory, Tomar |
| Date | |
| Source | Own work |
| Author | Keesscherer |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 14:18, 17 October 2019 | | 3,289 × 1,636 (2.39 MB) | Keesscherer (talk | contribs) | User created page with UploadWizard |
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