Comet 46P/Wirtanen is visible in our night skies here in Sydney, Australia. I had one day without clouds two nights ago and drove up to the base of the Blue Mountains to test a lens and to take a few shots. I wasn't sure if I would see the comet but each of my cameras had no problem at all. The comet is growing brighter and should reach a maximum brightness around the 16th of December. But between the 12th and the 22 ought to be the best time to view Wirtanen. Sadly our weather has changed for the worst so I'm waiting for another clear night. The moon will also be presenting itself in the sky now so that's another distraction. A tail has formed on the comet but it's confined within the coma when viewed with wider lenses. I think tracked shots from those with computerized EQ mounts will show more detail. As for me, I just used single exposures with the self timers built into my cameras. I saw some truly amazing Geminis when I was taking these images. Some even dropped below the treeline in front of me as they turned from bright green to orange.Reducing the background to bokeh balls enabled color isolation for the stars and I assumed this would reveal the comet's bright green hue (which it did).
A shot of the comet alone. It was easily seen by my cameras but I really couldn't see it with my eyes.
CAMERA - [Canon EOS M6 (APS-C) mirrorless]
LENS - [Canon EF-M 32mm f/1.4 STM]
LOCATION - [Bilpin, NSW, Australia]
FILTER - [NiSi Natural Night Filter]