{"id":565,"date":"2016-02-18T20:32:29","date_gmt":"2016-02-18T20:32:29","guid":{"rendered":"http:\/\/www.astronotas.org\/messier\/?p=565"},"modified":"2023-12-09T15:49:54","modified_gmt":"2023-12-09T19:49:54","slug":"m28","status":"publish","type":"post","link":"https:\/\/www.astronotas.org\/messier\/m28\/","title":{"rendered":"Messier 28"},"content":{"rendered":"\n
\"M28\"<\/a><\/figure>\n\n\n\n

Objeto: M28<\/strong><\/p>\n\n\n\n

Constelaci\u00f3n: Sagittarius
Fecha: 1992.05.31 | Hora: n\/a UT
Lugar: Sumidero, Aguas Buenas, PR<\/p>\n\n\n\n

Tipo de objeto: C\u00famulo globular, clase IV
Nombre: NGC 6626
Magnitud: 6.9 | Tama\u00f1o: 11′
A.R. 18h24.1m | Dec. \u201324\u00b053′
\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

\"M28\"<\/a>
DSS2 @ Wikisky.org<\/figcaption><\/figure>\n\n\n\n

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

Espa\u00f1ol:<\/strong> M28 es un c\u00famulo globular de octava magnitud, que se encuentra al noroeste de Lambda (22) Sagittarii, estrella que resulta el punto perfecto para localizarlo. Aunque es relativamente peque\u00f1o, es bastante brillante. A 30x, se ve como un punto borroso al noroeste de Lambda Sagittarii (aunque no es visible dentro del mismo campo de visi\u00f3n de ese ocular). A cualquiera otra magnificaci\u00f3n, el c\u00famulo adquiere una mejor apariencia. A pesar de su brillo y buena definici\u00f3n, M28 no se puede resolver con el telescopio de 6 pulgadas (15.4 cm); sus estrellas m\u00e1s brillantes son de magnitud 14.<\/p>\n\n\n\n

English:<\/strong> M28 is an 8th magnitude globular cluster, located northwest of Lambda (22) Sagittarii, the perfect star locate this object. Although relatively small, it is quite bright. At 30x, it looks like a fuzzy patch northwest of Lambda Sagittarii (though both are not visible in the same field of view of this eyepiece). At other magnifications, the cluster takes on a better appearance. Despite its brightness and good definition, M28 can not be resolved with the 6-inch telescope (15.4 cm); its brightest stars are of 14th magnitude.<\/p>\n\n\n\n

\"M28\"<\/a>
NOAO\/AURA\/NSF [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n

Cometarios de Messier en 1771:<\/strong> La noche del 26 al 27 del mismo mes, descubr\u00ed una nebulosa en la parte superior del arco del Sagitario, a 1 grado alrededor de la estrella \u03bb de esta constelaci\u00f3n, y poco lejos de la bella nebulosa que est\u00e1 entre la cabeza y el arco: esta nueva puede ser la tercera del viejo y no contiene ninguna estrella, tanto como que la pude juzgar examin\u00e1ndola con un buen telescopio gregoriano que aumentaba ciento cuatro veces: es redonda, su di\u00e1metro es de alrededor de 2 minutos de grado; se ve dif\u00edcilmente con un anteojo ordinario de 3 pies y medio de largo. Compar\u00e9 el medio con la estrella \u03bb del Sagitario y conclu\u00ed su ascensi\u00f3n recta de 272\u00b0 29′ 30″ y su declinaci\u00f3n de 24\u00b0 57′ 11″ meridional.<\/p>\n\n\n\n

Comentarios de Messier en 1784:<\/strong> Nebulosa descubierta en la parte superior del arco del Sagitario a alrededor de 1 grado de la estrella \u03bb y un poco alejada de la bella nebulosa que est\u00e1 entre la cabeza y el arco. No contiene ninguna estrella; es redonda, solo se ve dif\u00edcilmente con un anteojo ordinario de 3 pies \u00bd. Su posici\u00f3n ha sido determinada por \u03bb del Sagitario. Vuelta a ver el 20 de marzo de 1781.<\/p>\n\n\n\n

Mapa para localizar a M28<\/strong><\/p>\n\n\n\n

\"Mapa<\/a>
Haga click para agrandar.<\/figcaption><\/figure>\n\n\n\n
\"M28\"<\/a>
NASA, ESA, STScI, R. Buonanno (Universita di Roma Tor Vergata), K. Gebhardt (University of Texas at Austin), J. Grindlay (Harvard University), and F. Ferraro (Universita di Bologna) [origen<\/a>]<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

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