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4 giorni fa · Comet “1P/Halley” is the first comet to be recognized as periodic and is named after English astronomer Edmond Halley, who determined that it was periodic. The designation “I” is used for interstellar objects such as ‘Oumuamua and Comet Borisov.
2 giorni fa · M13 fu scoperto dall’astronomo inglese Edmond Halley nel 1714 e successivamente catalogato da Charles Messier nel 1764. Con una magnitudine apparente di circa 5,8, M13 è appena visibile ad occhio nudo sotto cieli particolarmente bui, ma diventa un obiettivo straordinario anche per piccoli telescopi e binocoli.
5 giorni fa · It has been observed since ancient times, but it was not recognized as a periodic solar system object until its orbit was accurately calculated by Edmund Halley in the 18th century. The comet's nucleus is estimated to be about 15 kilometers in diameter and it is composed of ice, dust, and small rocky particles.
4 giorni fa · Londra 1684. Il padre del famoso astronomo Edmond Halley viene ritrovato morto in un fiume con il volto sfigurato e nudo, a eccezione delle scarpe e delle calze, tre a un piede e quattro...
5 giorni fa · Halley’s Comet may be the world’s most famous cosmic spacefaring object but what do you really know about this ball of dust and ice? The facts about Halley’s Comet and the long role it has...
2 giorni fa · Catalogada em 1677 com magnitude 4 por Edmond Halley, em 1843 teve uma erupção que aumentou seu brilho para o nível de Sirius (-1,33). Depois disso (entre 1900 e 1940), a magnitude era apenas de 5.
4 giorni fa · 1705 – Edmond Halley predicts the return of Halley's comet in 1758, the first use of Newton's laws by someone other than Newton himself. 1728 – Isaac Newton posthumously publishes his cannonball thought experiment. 1742 – Colin Maclaurin studies a self-gravitating uniform liquid drop at equilibrium, the Maclaurin spheroid.
