M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies (Bill Blanshan)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: 35 And · Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32 And · The star ν And

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M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

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M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

Shooting mosaics from bortle 8 skies is always very challenging, mainly because of very bad light pollution gradients. This is a 9 panel mosaic of M31 shot with my Edge-11 with F1.9 hyperstar from my backyard here in Richmond Texas using the PlayerOne Poseidone-C OSC camera and a Astronomiks IR cut filter. I used NINA and PHd2 software for acquisition, APP for stacking, and GradXpert & Pixinsight for post processing. I am a firm believer that just because you live in a heavily light polluted area doesn't mean you have to use light pollution filters for broadband targets like this.

Out of the 9 panels locations shot, I ended up using 900 x 30s light frames for this image which is a total of 7.5 hours. I also added an 1hr of Ha data from a previous session and used my Pixelmath script to add the Ha to show off the Ha regions within this galaxy.

Regards,
Bill Blanshan

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M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

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M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

M31 - The Andromeda Galaxy - Edge-11 Hyperstar 9 panel mosaic plus Ha shot in Bortle 8 skies

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