Hi. Comet Leonard taken on New Years Eve at a Bortle 2 site (wiruna). This is 10 x 240 sec of the comet. No filter other than UV/IR cut. Fully Calibrated and processed in Pixinsight. ASI 533 OSC HEQ5 ED80. I tried for a mosaic but failed (lol) too much time transpired between sessions!
Hi Res here at Astrobin (jpeg so small download)
https://astrob.in/ufe5tg/0/