Currently there are three comets visible in the Northern Hemisphere. One C/2019 Y4 Atlas was hoped to become a real stunner but seems to have fragmented in the last week and has dimmed somewhat, currently at magnitude 9.4. The other two, C/2019 Y1 Atlas (9.6)and C/2017 T2 Pannstarrs (8.7) are not expected to become naked eye objects.
I have taken 240 s exposures, calibrated with flats and dark flats and created gifs from the unstacked stretched frames. (DSS, Lightroom and a gif maker).
The 2019 Y1 and 2017 T2 seem much brighter than 2019 Y4; the magnitudes were from the information pane in Cartes du Ciel, after I had updated the comet information last night. I imagine it shows the ongoing fragmentation of Y4.
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| C/2017 T2 Pannstarrs |
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| C/2019 Y1 Atlas |
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| C/2019 Y4 Atlas |
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