a region in the plane of our galaxy, the Trifid does illustrate 3 different types of astronomical red emission nebulae, blue reflection nebulae, and dark nebulae
https://t.co/L4ujC6dY6x via

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Our 2020 exhibition opens on Saturday: John Herschel & Nebulae: ‘Whatever shines should be observed’. We commemorate the bicentenary of by celebrating the work of one if its founders, Sir John Herschel, son of our William Herschel. https://t.co/sw3ZdvBQdk

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NGC 1976 & 1977, the Orion & Running Man the heart of a hunter
https://t.co/7kfZCNz0Ho by S.Grasso

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8 Comets, 2500 Nebulae: Caroline Herschel’s Century of Astronomy https://t.co/9Qwkegsid7

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