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The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region in the north-west of Sagittarius in a star-forming region in the Milky Way's Scutum–Centaurus Arm. [3] It was discovered by Charles Messier on June 5, 1764. [ 4 ]
The value of G times the mass of an object, ... before peaking at a rate of 10 −5 to 10 −4 M ☉ /year as the Sun generates a planetary nebula. ... × 10 20 m 3 s ...
Spiral nebula surrounding NGC 262, which is one of the largest known galaxies. Ivory Nebula: 1,190,500 ly (365,000 pc) [2] Enormous Lyα nebula (ELAN) Also called MLAN1 at z=2.31. Another ELAN, called MLAN 10 is nearby. Q0042−2627 nebula 1,040,000 ly (320,000 pc) [10] Enormous Lyα nebula (ELAN) Around the quasar LBQS 0042-2627, at z=3.280
M bol is the bolometric magnitude of the star; The new IAU absolute magnitude scale permanently disconnects the scale from the variable Sun. However, on this SI power scale, the nominal solar luminosity corresponds closely to M bol = 4.74, a value that was commonly adopted by astronomers before the 2015 IAU resolution. [10]
The nebula, designated GJJC1, is likely about only 6,000 years old. [3] Two black holes of between 10 and 20 solar masses (M ☉) each were unearthed with the Very Large Array radio telescope in New Mexico and corroborated by the Chandra X-ray telescope in 2012. [18]
NGC 2032 (also known as ESO 56-EN160 and the Seagull Nebula) is an emission nebula in the Dorado constellation and near the supershell LMC-4 [2] and it consists of NGC 2029, NGC 2035 and NGC 2040. It was first discovered by James Dunlop on 27 September 1826, and John Herschel rerecorded it on 2 November 1834. [ 3 ]
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The Trapezium Cluster is a component of the much larger Orion Nebula cluster, an association of about 2,800 stars within a diameter of 20 light years. [10] The Orion Nebula is in turn surrounded by the much larger Orion molecular cloud complex , which is hundreds of light years across, spanning the whole Orion Constellation.