Photometric observations of ecliptic comet 47P/Ashbrook–Jackson and selected quasi-Hilda and main-belt comets at Kyiv Comet Station (MPC code–585) in 2017

Abstract We present an analysis of the photometric data of comets 47P/Ashbrook–Jackson, 65P/Gunn, 362P/2008 GO98, and P/2017 S5 (ATLAS) observed at Kyiv Comet Station (MPC code–585) in 2017. The upper limits of radii for cometary nuclei, Afρ parameters, and color-indexes are measured.