cannot get Magn more than +13.9

Stacking program, astrometric (plate) solver, fits file viewer

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cannot get Magn more than +13.9

Forum: General discussions ASTAP

Created: 2023-07-12

Updated: 2023-07-15

Niwat - 2023-07-12

my photo show up to +18 or more but I cannot measure star more Magn.

no_object, 2023-07-08, 7x60L, OnStep Electronics, (L), ZWO ASI6200MM Pro_average_stacked.fits

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Niwat - 2023-07-12

work with photometry (M1 Mac) I cannot point a mouse to any star dimmer than ......

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Niwat - 2023-07-12

here some more photo

Screen Shot 2566-07-12 at 12.48.58.png

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han.k - 2023-07-12

The image seems to be processed as an OSC (colour). The 2600MM is a mono camera. Switch off the checkmark "force processing as OSC images" in tab stack method.

Binning 4x4 is too much.

The limiting magnitude is about 13.7 but this is uncertain due to the demosaic processing and 4x4 binning making the stars too small. some will be ignored as hot pixels.

Han

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Niwat - 2023-07-15

Further, I brought the previous photos to analyze. A comet can be seen, but its brightness cannot be measured. So bring it down in case it's useful. As for Var, I can see up to 14.6, great..
The Comet Magn 16.7 on that day :)

Last edit: Niwat 2023-07-15

85044BF3-443F-42AC-BD2C-82653383CBC5.png

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