Lagoon And Trifida Nebulae
by Mount Stromlo And Siding Spring Observatories/science Photo Library
Title
Lagoon And Trifida Nebulae
Artist
Mount Stromlo And Siding Spring Observatories/science Photo Library
Medium
Photograph - Photograph
Description
Lagoon and Trifid nebulae. Optical image of the Lagoon (M8, NGC 6523; lower centre) and Trifid (M20, NGC 6514; upper right) nebulae. These are both in the constellation Sagittarius. These nebulae are huge clouds of gas and dust which glow due to the ionisation of their hydrogen gas by radiation from hot, young stars embedded in them. The Lagoon nebula contains several dark and dense clouds of dust, known as Bok globules. These appear as small black areas silhouetted on the brighter nebula. It is thought that they may eventually coalesce into new stars. Most large nebulae are now thought to be starbirth regions.
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September 13th, 2018
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