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In 1610, the French astronomer Nicolas-Claude Fabri de Peires discovered the nebula, two years after the telescope was invented.

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There are low-mass, planet-like shapes inside the nebula. These are brown dwarfs. These are pretty much failed stars, as they are too small to be a star, and too big to be a planet. They don't let off light because they aren't big enough to have got over the required 10 billion degrees kelvin to become a star.

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The Orion Nebula is a nebula about 1,300 light years away from Earth. It spans 24 light years across. Using the gasses and dust, it creates stars. It is the closest star-making region to Earth. It has created thousands of stars, all of them relatively young. The nebula itself is about 3 million years old, and compare to the suns 4.6 billion years, it is very young.

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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2019 October 30

M42: Inside the Orion Nebula
Image Credit & Copyright: Josep M. Drudis &Don Goldman

Explanation: The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-years away. In the featured deep image in assigned colors highlighted by emission in oxygen and hydrogen, wisps and sheets of dust and gas are particularly evident. The Great Nebula in Orion can be found with the unaided eye near the easily identifiable belt of three stars in the popular constellation Orion. In addition to housing a bright open cluster of stars known as the Trapezium, the Orion Nebula contains many stellar nurseries. These nurseries contain much hydrogen gas, hot young stars, proplyds, and stellar jets spewing material at high speeds. Also known as M42, the Orion Nebula spans about 40 light years and is located in the same spiral arm of our Galaxy as the Sun.

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APOD: 2019 October 30 - M42: Inside the Orion Nebula

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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2019 October 30 M42: Inside the Orion Nebula Image Credit & Copyright: Josep M.