"The Quiet Predator," which reveals details of a shark-like nebula swimming among the stars.
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The organization describes the competition as the largest international astrophotography competition of its kind, with the overall winner receiving £10,000, chosen from among the winners in the adult the image from the Al-Salmi desert in western Kuwait, using two telescopes and two cameras to collect exposures totaling 28 hours and 30 minutes.
A nebula is a cloud of gas and dust between stars, and its shark-like appearance arises from the distribution of its material as seen from Earth. Its darker parts belong to dark nebulae, where dust blocks the light of stars behind it, creating dark areas within the star field. Therefore, darkness here signifies the presence of matter obscuring light, not a void devoid of matter.
These areas are adjacent to blue reflection nebulae, in which the dust appears illuminated by the light of nearby stars that scatters it towards our eyes. Thus, the scene combines dust that blocks the light with dust that is revealed by the light, forming the boundaries that the viewer imagines as the head, mouth, and consciousness of a huge marine creature.
Because the nebula is so faint, the image was not a single continuous shot, but rather the result of hundreds of exposures that were collected and digitally processed.
Combining the images helps to highlight faint light signals and reduce noise, revealing details that are difficult to capture in a short exposure. The photographer used red, green, and blue filters, along with a detail-capture filter, to create the color image.
Praise from experts
According to a statement from the Royal Greenwich Museum, judge Steve Marsh praised the balance between light and dark areas and the clarity of stars even at the edges of the frame, noting the detailed appearance of distant galaxies behind the nebula. This ability to preserve detail across varying levels of brightness was one of the reasons the work was chosen as the winner.
The image is on display as part of the competition exhibition at the National Maritime Museum in London, which this year includes 100 images, opening a window for the public onto cosmic details hidden from the naked eye by the darkness of the sky.
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