These plots are based on the current, rather uncertain orbit and the predicted magnitude is just a guess. The observability plot shows the elevation of the comet at evening nautical twilight for various latitudes. At 50N we don’t get a chance until early October but it will be a good target for observers with access to telescopes further south.
The elongation plot shows that it has been within 30 deg of the Sun since late July. That fact that it wasn’t picked up by surveys earlier this year when it was at a large elongation implies that it has brightened rapidly and so it will possibly fade rapidly as well.
I’ll update the plots when we have a bit more astrometry.
