Comet Panstarrs

Comet Panstarrs 2011

This item in the following portfolios:

Comet Panstarrs

Comet Panstarrs (C/2011 L4) is a non-periodic comet discovered in June 2011 that became visible to the naked eye when it was near perihelion in March 2013. It was discovered using the Pan-STARRS telescope located near the summit of Haleakalā, on the island of Maui in Hawaii.

Thank you for reading this post, don't forget to subscribe!

Comet C/2011 L4 probably took millions of years to come from the Oort cloud. After leaving the planetary region of the Solar System, the post-perihelion orbital period (epoch 2050) is estimated to be roughly 107000 years.

Dust and gas production suggests the comet nucleus is roughly 1 kilometer (0.62 mi) in diameter, while based on the absolute nuclear magnitude and a geometric albedo of 0.04 the diameter of the nucleus is over 2.4 kilometers (1.5 mi). A method based on coma magnitude decay function estimated the effective radius at 2.317 ± 0.190 km.


Chased this comet back in the day.  This was from under the Chinook Arch.

Observation Log Information
Log Index:781
Equipment:Canon 60D Tripod 50mm Lens

Don’t miss the chance to explore Comets’ impressive portfolio. It’s worth checking out!

July 22, 2022
Roger Nelson