{"id":109,"date":"2016-01-18T02:55:00","date_gmt":"2016-01-18T02:55:00","guid":{"rendered":"http:\/\/www.astronotas.org\/messier\/?p=109"},"modified":"2023-12-09T14:43:57","modified_gmt":"2023-12-09T18:43:57","slug":"m20","status":"publish","type":"post","link":"https:\/\/www.astronotas.org\/messier\/m20\/","title":{"rendered":"Messier 20"},"content":{"rendered":"\n
\"M20\"<\/figure>\n\n\n\n

Objeto: M20<\/strong><\/p>\n\n\n\n

Constelaci\u00f3n: Sagittarius
Fecha: 1994.08.04 | Hora: 0:53 UT
Lugar: Jauca, Santa Isabel, PR<\/p>\n\n\n\n

Tipo de objeto: Nebulosa de reflexi\u00f3n
Nombre: Nebulosa Tr\u00edfida, NGC 6514
Magnitud: ~8.5 | Tama\u00f1o: 29′ x 27′
R.A. 18h02.6m | Dec. \u201323\u00b002′
\u00c9poca: 2000.0<\/p>\n\n\n\n

Instrumento: Meade MTS-SN 6
Ocular: 8.8 mm UWA | Aumento: 87x
Campo aparente: 84\u00b0 | Campo actual: 57′
Otros:<\/p>\n\n\n\n

Carta en Uranometr\u00eda 2000.0: 339<\/p>\n\n\n\n

\"M20\"<\/a>
John Mirtle [origen<\/a>]<\/figcaption><\/figure>\n\n\n\n

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

Espa\u00f1ol:<\/strong> M20, la Nebulosa Tr\u00edfida, combina caracter\u00edsticas de una nebulosa de reflexi\u00f3n y una de emisi\u00f3n. Est\u00e1 localizada varios grados al norte de M8, en Sagitario. Aunque es generalmente tenue, resulta brillante y de considerable tama\u00f1o. Su inconfundible apariencia la debe a la regi\u00f3n oscura de la nebulosa (B85), que divide la regi\u00f3n luminosa en dos pedazos. La regi\u00f3n sur (arriba, seg\u00fan el dibujo) tambi\u00e9n queda dividida en varias secciones, en medio de las cuales se localiza una estrella doble.<\/p>\n\n\n\n

English: <\/b>M20, the Trifid Nebula, combines features of a reflection nebula and an emission nebula. It is located several degrees north of M8 in Sagittarius. Although generally faint, it is somewhat bright and quite large. Its unmistakable appearance is due to the dark component of the nebula (B85), which divides the luminous region into two parts. The southern area (up, according to the drawing) is also divided into several sections, and a double star lies at its center.<\/p>\n\n\n\n

\"M20\"<\/a>
Todd Boroson\/NOAO\/AURA\/NSF [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n
\"M20<\/a>
M20 en luz infrarroja. ESO\/VVV consortium\/D. Minniti. [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n

Cometarios de Messier en 1771:<\/strong> La misma noche determin\u00e9 la posici\u00f3n de dos c\u00famulos de estrellas que est\u00e1n cerca el uno del otro, un poco arriba de la ecl\u00edptica, entre el arco del Sagitario y el pie derecho de Ofiuco: la estrella conocida m\u00e1s cercana de estos dos c\u00famulos es la und\u00e9cima de la constelaci\u00f3n del Sagitario, de s\u00e9ptima magnitud, seg\u00fan el cat\u00e1logo de Flamsteed: las estrellas de estos dos c\u00famulos son, de la octava a la novena magnitud, rodeados de nebulosidad. Determin\u00e9 sus posiciones. Ascensi\u00f3n recta de primer c\u00famulo, 267\u00b0 4′ 5″, su declinaci\u00f3n 22\u00b0 59′ 10″ meridional. Ascensi\u00f3n recta del segundo, 267\u00b0 31′ 35″, su declinaci\u00f3n, 22\u00b0 31′ 25″  meridional.<\/p>\n\n\n\n

Comentarios de Messier en 1783:<\/strong> C\u00famulo de estrellas, un poco arriba de la ecl\u00edptica, entre el arco de Sagitario y el pie derecho de Ofiuco. Vuelta a ver el 22 de marzo de 1781.<\/p>\n\n\n\n

Mapa para localizar a M20<\/strong><\/p>\n\n\n\n

\"Mapa<\/a>
Haga click para agrandar.<\/figcaption><\/figure>\n\n\n\n
\"M20\"<\/a>
ESO [origen<\/a>] <\/figcaption><\/figure>\n\n\n\n
\"Detalle<\/a>
Detalle de M20. NASA and Jeff Hester (Arizona State University). [origen<\/a>] <\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

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