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Equipment: FTF2020M CCD with IR-blocking filter on 25cm f/D=5.7 Newton (f=1455mm). Sum of 9 exposures of 60 seconds.
Click on the left image for an overview of the four photographs covering a field of view of 0.76x0.70 degrees
each. The images are processed with an unsharp mask using a rotational uniform filter over 16 degrees centered
on the comet's head. Details in the comet's tail are enhanced by a factor of 3. Click on the right image for a gif showing, in a loop, the unprocessed and sharpened images, albeit with limited greyscale depth! (Click here for a 'mouse-over' version of the unsharp masked and non-sharpened (but still processed!) images.) |
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TSUCHINSHAN-ATLAS (C/2023 A3) October 23, 24, 25 & 27, 2024 Scope: 25cm Newton f/D=5.7 CCD: FTF2020-M Filter: Melles Griot IR-blocking Exposure: 9x60 seconds FoV each: 0.76x0.70 degrees |
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