NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars (Dennis Kaiser)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · M 52 · NGC 7635 · NGC 7654

NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars, Dennis Kaiser

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NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

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NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

NGC 7635, auch Blasennebel (engl. Bubble Nebula) genannt, ist ein Emissionsnebel und eine HII Region im Sternbild Kassiopeia am Nordsternhimmel, welcher etwa 7100 Lichtjahre von der Erde entfernt ist.

Er befindet sich in der Nähe des offenen Sternhaufens Messier 52. Die Bezeichnung stammt von einer Sternwind Blase, die durch den Sternwind eines O-Sterns mit der Bezeichnung BD +60 2522 (SAO 20575) entstanden ist. Der Stern stößt große Mengen an Gas aus, die sich mit rund 28 Kilometer pro Sekunde in die Umgebung ausbreiten.

Dabei stoßen die expandierenden Gase auf die riesige umgebende Molekülwolke in dieser Region, die der Ausdehnung Widerstand entgegenbringt. Dadurch bildet sich eine Stoßwelle aus, welche die äußere Hülle der Gasblase bildet.
SAO 20575 hat die Helligkeit von 7,8 mag.Quelle 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	8595827
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NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

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NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

NGC7635 Bubble Nebula OSC Duo Narrowband and RGB Stars

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