C/2017 K2 PANSTARRS
 

Closest to Earth on 2022 July 14 at 1.80AU

Closest to Sun on 2022 Dec 19 at 1.79AU.

Maximum magnitude 7 from Nov 22 to Feb 23.

Orbital period:  N/A Parabolic (dynamically new)



This large comet (estimated 18kms) arrives at perihelion in December 2022, where it may peak at magnitude 7.5, when situated in south circumpolar skies.

The comet will be observable for a long time, 10th magnitude or brighter for a year, but it has brightened slower than anticipated.

The comet doesnít get very close to the Earth, nor the Sun. However, expect to see a strongly condensed nucleus and bright dust tail, later in 2022.

The Earth crosses through the comets orbital plane on June 20. Here we will see the comets dust tail edge-on.


On June 1, the magnitude 9 comet was situated in Ophiuchus, rising at 830pm but best observed at 2am during transit.

The comet trekked slowly south westwards during the month, whilst remaining in Ophiuchus.

By the end of June, the comet had brightened to magnitude 8.5 and transited around 1130pm local time.

Visibility for southerners continued to improve as the comet brightened and headed southwards.


On July 1, the magnitude 8.0 comet was situated in Ophiuchus, in the evening sky, trekking slowly south-westwards.
On July 15, the comet was 25íN of mag 6.6 globular cluster Messier 10

 

Below chart of comet motion during Dec 2022 to end of June 2023.