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Small Sagittarius Starcloud to M16 Mosaic (200mm 5DII).jpg
A mosaic of the rich region in Sagittarius and southern Serpens, from the Small Sagittarius Starcloud (Messier 24) at bottom to Messier 16, the Eagle Nebula, at top, with a fainter nebula above it around the cluster NGC 6604. At centre is the Swan or Omega Nebula, Messier 17. The dark nebula below centre is Barnard 92.
The differences in the colours of the starclouds and nebulas is due to different amounts of intervening interstellar dust, with denser dust clouds absorbing more of the blues and making the objects appear redder or more yellow.
This is a mosaic of two vertical segments, each segment a stack of 5 x 2-minute exposures with the 200mm lens at f/2.8 and filter-modified Canon 5D MkII at ISO 1600. Tracked on the AP 400 mount, unguided. From Tibuc Gardens Cottage, in New South Wales, Australia. Re-processed in 2023.
The differences in the colours of the starclouds and nebulas is due to different amounts of intervening interstellar dust, with denser dust clouds absorbing more of the blues and making the objects appear redder or more yellow.
This is a mosaic of two vertical segments, each segment a stack of 5 x 2-minute exposures with the 200mm lens at f/2.8 and filter-modified Canon 5D MkII at ISO 1600. Tracked on the AP 400 mount, unguided. From Tibuc Gardens Cottage, in New South Wales, Australia. Re-processed in 2023.
- Copyright
- © 2017 Alan Dyer
- Image Size
- 5231x5289 / 34.6MB
- www.amazingsky.photoshelter.com
- Contained in galleries
- Messier Objects, Nebulas, 2017 Australia
