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What Is a Nebula? | Facts, Definition, What Are They?, Types This nebula has many colors Astronomers know that the orange color is hydrogen, the red color in the nebula is sulfur, and the green color is oxygen When you think about a nebula, you can think of it it two ways: a nebula is a giant cloud of dust and gas in space, and a nebula is the place where stars are formed and born
Nebulae Facts For Kids | What?, Formation, Importance, Size, Comparison The biggest Nebula ever discovered is the Tarantula Nebula At first, it was thought to be a star, but later on, in 1751, it got its proper recognition The Tarantula Nebula has an apparent magnitude of +8, and it is 160,000 light-years away
Types of Nebulae | Galaxies, Globular Open Clusters - The Nine Planets A typical diffuse nebula is a few hundred light-years across (NGC 2264 shown; see also the Horsehead Nebula) Planetary Nebulae Planetary nebulae are shells of gas thrown out by some stars near the end of their lives Our Sun will probably produce a planetary nebula in about 5 billion years
The Origin of the Solar System l The Big Bang - The Nine Planets At about this time, about 1 million years after the nebula cooled, the star would generate a very strong solar wind, which would sweep away all of the gas left in the protoplanetary nebula If a protoplanet was large enough, soon enough, its gravity would pull in the nebular gas, and it would become a gas giant
Monoceros Constellation | Facts, Information, Mythology, History . . . The Red Rectangle Nebula The Red Rectangle Nebula, also known as HD 44179, is a protoplanetary nebula located at around 2 3-kilo light-years away from us It has an apparent magnitude of 9 02 The star situated in the center of the nebula is a binary system NGC 2232 NGC 2232 is a bright open cluster centered on the star 10 Monocerotis
Corona Australis Constellation - The Nine Planets Corona Australis Nebula The Corona Australis Nebula is a bright reflection nebula, located at around 420 light-years away from us This nebula is formed by several bright stars that are caught up in a dark cloud of dust, and this cloud is also a star-forming region, with clusters of young stars embedded within it
Andromeda Galaxy Facts | Collisions, Life, Planets, Constellation History Up until the early 1900’s, it was believed that the Andromeda was a nebula within the Milky Way galaxy In fact, it was generally believed that all of the universe was contained within our galaxy In fact, it was generally believed that all of the universe was contained within our galaxy
Orion Constellation | Facts, Information, History Definition The Barnard’s Loop nebula is around 150 light-years in radius, covering much of the constellation of Orion It appears as a large arc centered on Messier 42 The loop is believed to be ionized by the stars located in the Orion Nebula The Flame Nebula The Flame Nebula is an emission nebula located at around 1,300 light-years away from us
The Web Nebulae Glossary - The Nine Planets diffuse nebula; associated with the Horsehead Nebula J K Keyhole Nebula dark nebula; NGC 3324; part of NGC 3372 L Lagoon Nebula diffuse nebula; NGC 6523, M 8, contains Hourglass Nebula Little Dumbbell Nebula planetary nebula; NGC 650-1, M 76 ly abbreviation for light-year (about 6,000,000,000,000 miles) M Messier Charles Messier was a French
Ursa Major Constellation | Facts, Information, History Definition The nebula itself holds around 0 13 solar masses of matter, such as hydrogen, helium, nitrogen, oxygen, and sulfur – all with a density of fewer than 100 particles per cubic centimeter Its outer radius if around 0 91 light-years, and it is expanding with velocities in the range of 27 29 km – 16 7 18 mi per second into the surrounding