Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  HD220057  ·  LBN 548  ·  LBN 549  ·  NGC 7635  ·  Sh2-162  ·  The star 58 Psc
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Bubble Nebula - 1 night, Nick Evans

Bubble Nebula - 1 night

Getting plate-solving status, please wait...
Bubble Nebula - 1 night, Nick Evans

Bubble Nebula - 1 night

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Acquisition details

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Description

I've previously shot this before, but was always doing subs too short (30-120 secs) for SHO. I was underestimating the amount of light loss due to imaging in such narrowbands. This was the first night where I had imaged a proper amount of time per sub (440 sec) to reveal the faint bits.

Guiding RMS was 0.9 arcsecs over the entire session (I was using NINA's advanced Meta data plugin) which is about average for my conditions. Curved a little bit down to help reveal the Ha dust (purple) relative to dark spaces, this also benefited by not blowing out the core quite as much.

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Sky plot

Sky plot

Histogram

Bubble Nebula - 1 night, Nick Evans