Cave nebula (SH2-155)

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Cave nebula (SH2-155)

Cave nebula (SH2-155), optical image. This nebula is an emission nebula, known as the Cave nebula because of the dark regions on the northern edge. Emission nebulae are clouds of hydrogen gas that are ionised by radiation from hot stars within them, causing them to glow. The dark regions may be due to a dark cloud of dust and gas in the foreground obscuring the light behind. The Cave nebula lies in the constellation Cepheus

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Media ID 6445425

© DAVIDE DE MARTIN/SCIENCE PHOTO LIBRARY

Astrophysical Astrophysics Cepheus Clouds Complex Dark Nebula Dust Emission Nebula Evolution Hii Region Ionised Gas Nebula Nebulae Nebulosity Silhouette Silhouetted Star Birth Stellar Formation Telescope

EDITORS COMMENTS
This print showcases the mesmerizing beauty of the Cave Nebula (SH2-155), an emission nebula located in the constellation Cepheus. The optical image reveals a stunning display of vibrant colors, with the dark regions on its northern edge earning it the name "Cave nebula". Emission nebulae like this are composed of hydrogen gas that becomes ionized by radiation emitted from hot stars within them, resulting in their luminous glow. The enigmatic dark areas within the Cave Nebula may be attributed to a dense cloud of dust and gas obscuring the light emanating from behind. This interplay between illuminated gases and hidden shadows adds depth and intrigue to this celestial masterpiece. As we gaze upon this silhouette captured through a telescope, our minds are transported into a realm where stellar formation takes place amidst swirling clouds of nebulosity. It serves as a reminder of how astrophysical processes shape our universe over millions of years. This awe-inspiring photograph not only highlights nature's artistic prowess but also contributes to our understanding of star birth and evolution. Its intricate details offer astronomers valuable insights into complex astronomical phenomena such as HII regions, ionized gas clouds, and absorption clouds. Science Photo Library has once again provided us with an extraordinary visual representation that sparks curiosity about our vast cosmos while reminding us just how small we are in comparison.

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