PREDNASAJUCI / LECTURER :

Olena Shubina

(1) Astronomical Institute, Slovak Academy of Sciences,
059 60 Tatranská Lomnica

NAZOV / TITLE :

Dusty coma of 67P/Churyumov–Gerasimenko in 2021-2022 apparition

ABSTRAKT / ABSTRACT :

Comet 67P/Churyumov–Gerasimenko was the target of a recent space mission of the
European Space Agency - Rosetta. That spacecraft performed a close-range monitoring
of the comet during the previous perihelion passage in 2015-2016. In the present
work, we study the dust environment of comet 67P/Churyumov–Gerasimenko in the
2021-2022 apparition, which is the next after Rosetta's approach. We carried out
photometric observations of the comet over 85 nights, both before and after
perihelion, using the SDSS broadband filters. Parameters such as a colour and a dust
activity level, which characterise dust in the cometary coma, were calculated. Our
results revealed the activity level trend similar to that observed in the 2002-2003
apparition.