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Som ET - 6 - M81 Discovered by the German astronomer Johann Elert Bode in 1774, M81 is one of the brightest galaxies in the night sky. It is located 11.6 million light-years from Earth in the constellation Ursa Major and has an apparent magnitude of 6.9. Through a pair of binoculars, the galaxy appears as a faint patch of light in the same field of view as M82. A small telescope will resolve M81’s core. The galaxy is best observed during April.
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Recentemente usando dois observatórios espaciais de raios-X, as agências mediram a rotação de um buraco negro, que fica no centro da galáxia NGC 1365. Esse Buraco Negro gira quase tão rápido quanto a teoria da gravidade de Einstein permite: "isso é quase a velocidade da luz" #astronomer #Astronomia #planeta #universo
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