{"id":116,"date":"2016-01-19T14:29:20","date_gmt":"2016-01-19T14:29:20","guid":{"rendered":"http:\/\/www.astronotas.org\/messier\/?p=116"},"modified":"2023-12-09T14:46:52","modified_gmt":"2023-12-09T18:46:52","slug":"m22","status":"publish","type":"post","link":"https:\/\/www.astronotas.org\/messier\/m22\/","title":{"rendered":"Messier 22"},"content":{"rendered":"\n
\"M22\"<\/a><\/figure>\n\n\n\n

Objeto: M22<\/strong><\/p>\n\n\n\n

Constelaci\u00f3n: Sagittarius
Fecha: 1991.08.06 | Hora: n\/a UT
Lugar: Sumidero, Aguas Buenas, PR<\/p>\n\n\n\n

Tipo de objeto: C\u00famulo globular, clase VII
Nombre: NGC 6656
Magnitud: 5.1 | Tama\u00f1o: 24′
A.R. 18h36.4m | Dec. \u201323\u00b054′
\u00c9poca: 2000.0<\/p>\n\n\n\n

Instrumento: Meade MTS-SN 6
Ocular: 6 mm ortosc\u00f3pico | Aumento: 127x
Campo aparente: 45\u00b0 | Campo actual: 21′
Otros:<\/p>\n\n\n\n

Carta en Uranometr\u00eda 2000.0: 340<\/p>\n\n\n\n

\"M22\"<\/a>
John Mirtle [origen<\/a>]<\/figcaption><\/figure>\n\n\n\n

Descripci\u00f3n<\/h3>\n\n\n\n

Espa\u00f1ol:<\/strong> M22 se encuentra en la constelaci\u00f3n de Sagitario, al este de la estrella m\u00e1s al norte del conjunto que forma la tetera. Despu\u00e9s de Omega Centauri, este es uno de los mejores c\u00famulos globulares que he visto, por su alto grado de resoluci\u00f3n. A cualquier magnificaci\u00f3n, M22 luce estupendo. A 30x, parece una nube circular, en la cual se distingue una estrella cerca del borde noreste (borde inferior derecho, seg\u00fan el dibujo, a 127x), y otros diminutos puntos de luz en el resto de la nube. A 127x, esa nubecilla se convierte en un c\u00edrculo relleno de innumerables estrellas. Adem\u00e1s de su gran tama\u00f1o y brillo, a 127x, se distingue que la peque\u00f1a estrella cerca del borde noreste no es sino un grupito de varias estrellas recogidas en esa zona, y que se separan, un poco, del resto del c\u00famulo.<\/p>\n\n\n\n

English: <\/b>M22 is located in Sagittarius, to the east of the northernmost star of the teapot. After Omega Centauri, this is one of the best globular clusters I have seen, because of its high level of resolution. At any magnification, M22 looks terrific. At 30x it looks like a round cloud, in which you can distinguish a star near the northeast edge. At 127x, the small circle fills with innumerable stars. Besides it’s considerable size and brightness, at 127x it becomes apparent that the little star in the northeast edge is really a smaller group of several stars clustered together in that area, a little bit away from the main cluster.<\/p>\n\n\n\n

\"M22\"<\/a>
Hunter Wilson [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n

Cometarios de Messier en 1771:<\/strong> La misma noche del 5 al 6 de junio, observ\u00e9 una nebulosa localizada un poco debajo de la ecl\u00edptica, entre la cabeza y el arco del Sagitario, cerca de la estrella de s\u00e9ptima magnitud, vig\u00e9sima quinta de esta constelaci\u00f3n, seg\u00fan el cat\u00e1logo de Flamsteed. Esta nebulosa no me ha parecido contener ninguna estrella, ya que la examin\u00e9 con un buen telescopio gregoriano que aumentaba ciento cuatro veces: es redonda, y se ve muy bien con un anteojo ordinario de tres pies y medio; su di\u00e1metro es de alrededor de 6 minutos de grado. Determin\u00e9 su posici\u00f3n compar\u00e1ndola a la estrella \u03bb del Sagitario; su asc\u00e9nsi\u00f3n recta ha sido concluida de 275\u00b0 28′ 39″ y su declinaci\u00f3n de 24\u00b0 6′ 11″ meridional. Fue Abraham Ihle, alem\u00e1n, quien descubri\u00f3 esta nebulosa en 1665, observando a Saturno. M. le Gentil la examin\u00f3 tambi\u00e9n, y \u00e9l ha hecho grabar su configuraci\u00f3n en el volumen de las Memorias de la Academia, del a\u00f1o 1759, p\u00e1gina 470<\/em>. \u00c9l la observ\u00f3 el 29 de agosto de 1747, por un muy buen tiempo, con un anteojo de 18 pies de largo: la observ\u00f3 otra vez el 17 de julio y en otros d\u00edas. \u00abSiempre me ha parecido, dice \u00e9l, muy irregular en su figura, melenuda y esparcidos una especie de rayos de luz por todo los alrededores de su di\u00e1metro.\u00bb<\/p>\n\n\n\n

\"M22\"<\/a>
N.A.Sharp, REU program\/NOAO\/AURA\/NSF [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n

Comentarios de Messier en 1783:<\/strong> Nebulosa, debajo de la ecl\u00edptica, entre la cabeza y el arco del Sagitario, cerca de una estrella de s\u00e9ptima magnitud, la vig\u00e9simo quinta del Sagitario, seg\u00fan Flamsteed, esta nebulosa es redonda, no contiene ninguna estrella, y se ve muy bien con un anteojo ordinario de tres pies y medio; la estrella \u03bb del Sagitario sirvi\u00f3 para la determinaci\u00f3n. Abraham Ihle, alem\u00e1n, la descubri\u00f3 en 1665, mientras observaba a Saturno. M. le Gentil la observ\u00f3 en 1747 y hace grabar la figura. Memorias de la Academia, a\u00f1o 1759, p\u00e1gina 470. <\/em>Vuelta a ver el 22 de marzo de 1781; est\u00e1 referida en el Atlas <\/em>ingl\u00e9s.<\/p>\n\n\n\n

Mapa para localizar a M22<\/strong><\/p>\n\n\n\n

\"Mapa
Haga click para agrandar.<\/figcaption><\/figure>\n\n\n\n
\"M22\"<\/a>
ESA\/Hubble & NASA [origen<\/a>] <\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

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