M51 - Galassia Vortice (Riccardo Sgaramella)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: M 51 · NGC 5194 · NGC 5195 · NGC 5198 · NGC 5229 · Whirlpool Galaxy

M51 - Galassia Vortice, Riccardo Sgaramella

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M51 - Galassia Vortice

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M51 - Galassia Vortice

Un altro soggetto che vede una elaborazione soddisfacente dopo un anno.
Galassia Vortice oppure conosciuta anche con la sigla M5, presente nella costellazione dei Cani da Caccia, comprende due galassie
- La più grande e famosa Galassia Vortice (anche nota come NGC 5194 e talvolta M51A) è una classica galassia a spirale.
- La più piccola galassia compagna nota come NGC 5195 (o anche M51B), è parzialmente coperta da un braccio di polvere della spirale Vortice (con la quale interagisce) La Galassia Vortice è una delle più luminose e interessanti galassie nel cielo: dista dalla Terra da 15 a 37 milioni di anni luce ed è ampia da 50.000 a 100.000 anni luce. È anche il membro dominante di un piccolo gruppo di galassie, chiamato gruppo di M51. Buona parte della sua intensa luminosità è dovuta alla presenza, nei bracci, di giovani ammassi stellari. Questa galassia fu la prima di cui si osservò la struttura a spirale, ad opera di William Parsons nel 1845.
La Galassia Vortice è unita a NGC 5195 attraverso un involucro comune di gas. L'interazione fra le due galassie ha comportato un incremento della creazione di stelle in NGC 5195. Anche il nucleo della Galassia Vortice è più luminoso di quanto ci si potrebbe aspettare, e questo ha portato alcuni studiosi a classificarla come una galassia di Seyfert attiva.
Soggetto scelto sia per sfida data la ridotta focale del mio rifrattore e sia sempre in fase di test per la risoluzione del problema dei flat, infatti le sessioni sono vicine alla luna piena, ma il risultato che se si è fatto attendere, non ha deluso, a mio avviso.
Cieli sereni RicAstro.

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Status	Advanced failed
Started	...
Astrometry.net job	7928081
PixInsight job	XSOH7Z916MRQ79S12L37I3F633KP4ENC
PixInsight queue size	n/a
PixInsight stage	GENERATING_FINDING_CHARTS

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M51 - Galassia Vortice

M51 - Galassia Vortice

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