Messier 39 before the invasion of the streetlights (MontanaFrank)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD204917 · HD205073 · HD205085 · HD205116 · HD205117 · HD205198 · HD205210 · HD205331 · LBN 416 · LDN 1006 · LDN 1009 · LDN 1012 · M 39 · NGC 7092

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Messier 39 before the invasion of the streetlights

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Messier 39 before the invasion of the streetlights

I love the background star field in this image. Pixel peeping will show a few camera anomalies that I had to work around. There are several dark clumps for fewer stars visible.

One of the first times that I was able to use Photographic Color Calibration and get a result that did what I wanted it to do; bring out the individuality of the backdrop to the cluster. Several red giant stars are visible, brought out with a touch of saturation.

This image was taken about a month before the city installed all new streetlights that took the house from Bortle 4 to Bortle 6(!) (corrected in comments). Before the streetlights I was measuring an MPAS of 21.10-21.20 on clear nights. Now I barely hit 20.00 with the same meter. Not nearly as bad as some of the people out there, but a bad trend.

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Status	Advanced success
Started	...
PixInsight job	8YL4TBXKETJOH5F5FN7CJIIY9N8Q0XT3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h31m38s.72
RA (top/left)	21h29m21s.16
RA (top/right)	21h37m10s.74
RA (bottom/right)	21h34m01s.31
RA (bottom/left)	21h26m04s.30

Dec (center)	+48°23′10″.6
Dec (top/left)	+47°30′52″.1
Dec (top/right)	+48°08′17″.2
Dec (bottom/right)	+49°15′20″.1
Dec (bottom/left)	+48°37′02″.1

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Messier 39 before the invasion of the streetlights

Messier 39 before the invasion of the streetlights

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Messier 39 before the invasion of the streetlights

Messier 39 before the invasion of the streetlights

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