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Dates:Oct. 6, 2018
Frames:
Baader B 36mm: 12x300" bin 2x2
Baader G 36mm: 12x300" bin 2x2
Baader L Filter 36mm: 21x600" bin 1x1
Baader R 36mm: 12x300" bin 2x2
Integration: 6.5 hours
Avg. Moon age: 26.62 days
Avg. Moon phase: 9.30%
Astrometry.net job: 2870909
RA center: 23h 19' 47"
DEC center: +61° 28' 26"
Pixel scale: 1.837 arcsec/pixel
Orientation: 354.324 degrees
Field radius: 1.034 degrees
Resolution: 3255x2412
Data source: Backyard
Este es un campo difícil desde Polop.
La señal existente en la zona es compleja para la ubicación semi-urbana en la que está el observatorio, sobre todo al tomar las imágenes sin filtros anti-contaminación lumínica.
NGC 7635 (o nebulosa de la Burbuja) es una nebulosa de emisión, una región H II, en la constelación de Casiopea, cerca del cúmulo abierto M52. Se ha originado por el viento estelar de la estrella central SAO 20575, de magnitud aparente 8,7.
La forma de burbuja marcadamente esférica de NGC 7635 señala el límite entre el fuerte viento de partículas proveniente del interior de la estrella al chocar con el denso material circundante. La estrella central tiene entre 10 y 20 veces la masa solar y es la responsable de los vientos de 2000 km/s. (Wikipedia)
En la parte superior izquierda está M52. Fue descubierto por Charles Messier en 1774. Puede verse incluso con unos prismáticos.
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