Comet P/2021 HS (PANSTARRS) and the Challenge of Detecting Low-Activity Comets

Quanzhi Ye, Michael S. P. Kelley, James M. Bauer +8

Jupiter-family comet (JFC) P/2021 HS (PANSTARRS) only exhibits a coma within a few weeks of its perihelion passage at 0.8~au, which is atypical for a comet. Here we present an inve…