Comet C/2021 A1 (Leonard)
2022 Jan. 06.05 UT  Dia.=&7.8' Tails= &2 deg in PA 91 deg (dust); >6 deg in PA 94 deg (ion)... [T70] 135 mm f/3.5 Samyang Lens + CMOS...
T. Prystavski (iTelescope observatory (remotely from Rio Hurtado Valley, Chile))

I’ve been hunting this comet since December. It was always a bad weather in Lviv and in addition comet was at very low altitude above the horizon. I couldn’t catch it in the evening twilight of one single night with clear skies. I hoped to use remote observatories, but as comet located low in the sky, so that only few telescopes could reach it. But they have been already reserved by other users, who turned out to be more farsighted and had made their reservations much earlier. The nearest free date I could made a reservation on the remote telescope in Chile was January 5 at 10:05 local time (January 6 at 03:05 EET). However, at that time this telescope did not work due to some technical issues. It is difficult to call this device a telescope in the full sense, as it is rather a 13.5 cm lens equipped with a CMOS matrix, like cameras, but with a guiding and the possibility to capture images using different filters. I was very lucky that on January 4 the telescope suddenly returned to work after a long period of downtime, just one day before I planned my session. So now the Southern Sky was finally open for me.
Comet C/2021 A1 (Leonard).
I've written about it before. This comet has been observed since January 2021, and during all this time there were a lot of expectations and predictions made regarding its peak brightness. As it was supposed to become visible to the naked eye in December and many people expected to see a fascinating show, this comet was paid a lot of attention. However, comets are comets, they always behave differently from what is expected of them. Suddenly, in the second half of November comet Leonard slowed down its increasing in brightness. Many observers started to talk about probable disintegration of the nucleus, and even sometimes fake images shared on the Internet, where comet looked likely being disintegrated. However, after a short stagnation period, the comet began to increase its brightness again.
On December 10 there was first report made that the comet became visible to the naked eye. In the second half of December, the comet experienced series of outbursts. The very first outburst was observed on December 14 and increased its brightness up to ~3 mag. Outbursts that found out to be repeated every three days, can be explained by the rotation of the nucleus: the outburst is observed when the active part of the nucleus turns towards the Sun. At that time, the comet has already developed a long tail. On December 29, extremely long tail was detected. It extended up to 60 degrees or 1/3 of the visible sky, which corresponds to a physical length of 150 million km. This beautiful view was revealed to observers from the Southern Hemisphere of the Earth.
In my image two tails are visible. One is bright and wide, extended up to 2 deg and called a dust tail. Another one is a gas (ion) tail. It is faint and thin located just below the dust tail. I chose a wide field telescope on purpose aiming to reveal most of the ion tail, which extends far beyond the image and it is at least 6 deg long.
Hopefully we won't wait long for the next bright comet, but I think C/2021 A1 (Leonard) is the brightest comet in years 2021-2022.