NGC 281 - Nebulosa Pac-Man (H-Alpha) (Luis Martinez)

Contains: Other

NGC 281 - Nebulosa Pac-Man (H-Alpha)

Objeto:NGC 281

Fecha: 20-07-2011

Localizacion: Los Arroyos (El Escorial)

Telescopio: Vixen VC200L Visac

Montura: Celestron CGEM

Guia: EZG60 + QHY5 (PHD Guiding)

Camara: Canon 50D (Modificada por Alfalben)

Filtro: Baader H-Alpha 7nm

Reductor/aplanador: Vixen 0.71x

ISO: 1600

Tomas: 16 tomas de luz + 3 darks

Sub Exposicion: 15 minutos

Tiempo Exposicion: 240 minutos

Software Captura: BackYardEos

Apilado: ImagesPlus

Procesado con: Pixinsight 1.7

Temperature: 20 ºC

Descripcion:

NGC 281 es una región H II en la constelación de Casiopea y parte del brazo de la espiral de Perseo. Incluye el cúmulo abierto IC 1590, la estrella de múltiples HD 5005, y varios glóbulos de Bok. Coloquialmente, NGC 281 es también conocida como la Nebulosa Pacman para su parecido con el personaje de videojuego.

La nebulosa se descubrió en agosto de 1883 por EE Barnard, quien lo describió como una nebulosa tenue grande, muy difusa. La estrella múltiple HD 5005, también llamado β1, fue descubierto por SW Burnham. Se trata de un 8 grados de magnitud primaria con cuatro compañeros a distancias de entre 1,4 y 15,7 segundos de arco. No ha habido ningún cambio apreciable en este sistema de quíntuple desde las primeras mediciones se hicieron en 1875.

La nebulosa es visible en telescopios de aficionados desde distintos puntos del cielo oscuro.En su libro Cielo Profundo Maravillas, Walter Scott Houston describe la aparición de la nebulosa en los telescopios pequeños

Hubo un débil resplandor en las inmediaciones de la estrella múltiple, con una impresión ocasional de una nebulosa mucho más grande ... Su brillo de la superficie fue mucho menor que el de M33 en el Triángulo o NGC 205, el compañero lejano de la galaxia de Andrómeda

Fuente: Wikipedia

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Astrometry.net job	n/a
PixInsight job	n/a
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NGC 281 - Nebulosa Pac-Man (H-Alpha)

NGC 281 - Nebulosa Pac-Man (H-Alpha)

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NGC 281 - Nebulosa Pac-Man (H-Alpha)

NGC 281 - Nebulosa Pac-Man (H-Alpha)

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