Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  NGC 7635  ·  Sh2-162
NGC7635 - The Bubble Nebula, Jérémie
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NGC7635 - The Bubble Nebula

NGC7635 - The Bubble Nebula, Jérémie
Powered byPixInsight

NGC7635 - The Bubble Nebula

Equipment

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Acquisition details

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Description

NGC7635 / the Bubble Nebula

Instrument: TS Optics 71/347 with a 2x Barlow lens, on iOptron Skyguider Pro mount

Camera: ASI183MM Pro and S,H et O 6nm filters from Astronomik

Capture over 3 nights : 250 x 1 minute in H alpha, 132 x 1 minute and 60 x 2 minutes in Oiii, 194 x 1 minute and 23 x 2 minutes in Sii

Processed with Siril

I had to combine Oiii and Sii in similar S/N ratio sub-batches, due to inhomogeous exposure times (neglecting the read noise of course), and combine these sub-batches together. Did that in Siril and final tweaks in Photoshop for combining the channels.

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