Double stacked 50mm Lunt. 60 seconds of data captures, best 20% stacked and sharpened in AS!4. Curves, levels and false colour added in FastStone Image Viewer. Sky was cloud free, but there was a high haze and overall below average seeing.

FireCapture v2.7.15 Settings

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Observer=Unknown

Location=Unknown_City

Scope=Unknown_Scope

Camera=ZWO ASI585MC

Filter=G

Profile=Sun_Halpha

Filename=2025-05-17-1548_6-U-G-Sun_Halpha.ser

Date=170525

Date(UT)=170525

Start=164808.641

Mid=164838.647

End=164908.654

Start(UT)=154808.641

Mid(UT)=154838.647

End(UT)=154908.654

Duration=60.013s

Date_format=ddMMyy

Time_format=HHmmss

LT=UT +1h

Frames captured=4009

FPS (avg.)=66

File type=SER

Binning=1x1

Bit depth=12bit

Data=Mono

Debayer(Preview)=yes

Debayer(Data)=no (Mono)

Debayer(Algorithm)=NearestNeighbor

Debayer(Pattern)=RG

ROI=1560x1500

ROI(Offset)=1296x640

Shutter=7.994ms

Gain=116 (19%)

AutoExp=off

AutoGain=off

Brightness=1

HardwBin=off

HighSpeed=off

USBTraffic=100

WBlue=75

WRed=55

Histogramm(min)=2

Histogramm(max)=1751

Histogramm=42%

Noise(avg.deviation)=n/a

eADU=6.068

AutoAlign=false

PreFilter=none

Limit=60 Seconds

Sensor temperature=35.9°C