Cloudy Nights'
Monthly Challenge Objects - 2023
Observing guides for Cloudy Nights' Monthly Challenge Objects in the year 2023.
Use the button(s) to download the objects of the month in the image orientation of your choice, click the object's name to visit the corresponding page on the Cloudy Nights forum. Please read Downloading CSOG and iPad Astronomy.
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Download - 2023
All Cloudy Nights' Monthly Challenge Objects for the year 2023.
Updated: 22 September 2025
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Observing guides (pages): 5 (13)
Index files: 1
AstroPlanner planfiles: 1
2 open clusters
3 galaxies
Click here to review the CSOG image orientations
Unmirrored
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MH
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MV
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MHV
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