The Sun with a white light solar filter; despite using the 0.8x reducer the whole disc does not quite fit on the sensor. North is towards the top and east on the left. 1000 frames captured in SharpCap and best 5% stacked in AS!4 and minor sharpening in WaveSharp and curves adjusted in FastStone Image Viewer. 

[ZWO ASI585MC]

CameraSerialNumber=06190F0A17020900

FrameType=Light

Debayer Preview=On

Pan=0

Tilt=0

Output Format=SER file (*.ser)(Auto)

Binning=1

Capture Area=3840x2160

Colour Space=RAW16

Exposure/Gain Shift=0

Temperature=39.3

Hardware Binning=Off

High Speed Mode=Off

Turbo USB=100(Auto)

Flip=None

Frame Rate Limit=Maximum

Gain=86

Exposure=0.0650ms

Timestamp Frames=Off

White Bal (B)=75

White Bal (R)=55

Brightness=1

Auto Exp Max Gain=300

Auto Exp Max Exp MS=30000

Auto Exp Target Brightness=100

Mono Bin=Off

CA Reduction/Synthetic Blue=Off

Mask over exposed pixels=Off

Flip (after dark/flat)=None

Trail Width=3

Minimum Trail Length=100

Trail Detection Sensitivity=9

Remove Satellite Trails=Off

Background Subtraction=Off

Planet/Disk Stabilization=Off

Banding Threshold=10

Banding Suppression=0

Apply Flat=None

Dark Scaling (Experimental)=Off

Hot Pixel Sensitivity=5

Subtract Dark=None

DisplayStretchEnable=1

NegativeDisplay=0

Display Black Point=0

Display MidTone Point=0.5

Display White Point=1

Notes=

TimeStamp=2025-05-10T13:14:06.1635750Z

SharpCapVersion=4.1.13268.0

StartCapture=2025-05-10T13:14:06.2079307Z

MidCapture=2025-05-10T13:14:27.2300007Z

EndCapture=2025-05-10T13:14:48.2520708Z

JDStartCapture=2460806.051461

JDMidCapture=2460806.051704

JDEndCapture=2460806.051947

Duration=42.044s

FrameCount=999

ActualFrameRate=23.7607fps

TimeZone=+1.00