![]() ![]() Other types of nebulae that can be observed are supernova remnants and emission nebula. It's the same principle as for reflection nebulae, just on a much greater scale. A very bright quasar (a very luminous galaxy) can illuminate the gas of these galaxies so we can see them even though they have no stars that emit any light. These young galaxies are essentially huge clouds of hydrogen and helium gas that were formed in the early universe and have no star formation at the time we can observe them. Recently whole galaxies have been discovered that react more or less like a reflection nebula. The larger nebula is embedded in the Large Magellanic Cloud, a satellite galaxy of our Milky Way. The double bubble, called N30B, is inside a larger nebula, named DEM L 106. There are about 500 known reflection nebulae that we have observed so far. A unique peanut-shaped cocoon of dust, called a reflection nebula, surrounds a cluster of young, hot stars in this view from the NASA / ESA Hubble Space Telescope. This results in the intense red and orange colours during sunrise and sunset. At sunset - when the path of the light through the atmosphere is much longer - it's the opposite: the red light penetrates deeper into the atmosphere while the blue light gets scattered and reflected long before it can reach the surface of the earth. Hence, the blue light is scattered to the surface from all parts of the sky, whilst the other colours mainly pass through the atmosphere without being deflected. The blue part of sunlight (which is a mixture of light of all colours) is scattered much more in the earth's atmosphere than any other colour of the sunlight. Hubble observed a small part of IC2631 in a. ![]() The object is illuminated by a star called HD 97300, one of the youngest as well as most massive and brightest stars in its neighborhood. The same effect is responsible for our sky being blue, not red, during the daytime. IC 2631 is the brightest nebula in the Chamaeleon Complex, a large region of gas and dust clouds that harbors numerous newborn and still-forming stars. This is because particles in the nebula scatter (or reflect) blue light more efficiently than they scatter red light. Reflection nebula Hubble/WFPC2 captures the void in 2000. A nebula starts with a cloud of interstellar dust. It is a reflection nebula, and shines from the light of the variable star V380 Orionis. Reflection nebulae mostly appear to have a blue colour. While searching for young stars and their circumstellar disks, Hubble captured a classic reflection nebula. The Omega Nebula is a reflection nebula in some of its parts ![]()
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