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 ν And
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Andromeda Galaxy from a Bortle 7 area, Louis Leroux
Andromeda Galaxy from a Bortle 7 area
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Andromeda Galaxy from a Bortle 7 area

Getting plate-solving status, please wait...
Andromeda Galaxy from a Bortle 7 area, Louis Leroux
Andromeda Galaxy from a Bortle 7 area
Powered byPixInsight

Andromeda Galaxy from a Bortle 7 area

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Description

Here is the famous M31 in LHaRGB from a suburban sky in northern France (Douai). My backyard is under a lightpolluted area (approx. Bortle 6/7). This image is the result of around 50 hours of exposure spread over 16 sessions. It's a mosaic of 2 tiles (25h per tile). Just disappointed not to have any Ha signal around Andromeda... 

EXIF :
-ZWO 533MM Pro
-Askar FRA400 f/5.6
-Sky Watcher AZ-EQ6
-Asiair plus + EAF + EFW
-Antlia filters
-Omegon 50/180
-ZWO ASI 120MM mini
-16 nights (from Sept 2022 to Sept 2023)
-L = 180*180s (x2)
-Ha = 137*300s (x2)
-R = 40*180s (x2)
-G = 35*180s + 26*180s
-B = 40*180s + 25*180s
-25h34 per tile (51h08 total integration time)
-Bortle 6/7 (SQM 18.98)
-Pix & PS

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Andromeda Galaxy from a Bortle 7 area, Louis Leroux