Comet 46P/Wirtanen is in our night sky and visible without a telescope. I cannot say it is a naked-eye object, but I will qualify that by telling you I have not been out in the most favorable time. Most of my viewing has been at 03:00 to 04:00 and if I could get outside a couple hours earlier I might indeed glimpse it. So I am looking to the west and not so much to the south. I do have pretty good skies too so if you have any light pollution at all you will need assistance in seeing Wirtanen (in my experience that is).
If you have even a small pair of binoculars you are all set. I chose the image above because it is a great facsimile of what I see (image from: Astronomy Sketch of the Day). If you have even a small telescope you may be able to see a tail.
How do you find it? The best finders chart I’ve found is here and the chart comes from the Comet Wirtanen Observing Campaign website.
Hopefully I will be able to get one of my scopes on it this weekend. From the weather forecast here that ...