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In this work, we report the observations of the long-period comet C/2015 O1 performed on 2018 January 29-30 and April 13 with the Nanshan 1-meter wide-field telescope operated by Xinjiang… Click to show full abstract
In this work, we report the observations of the long-period comet C/2015 O1 performed on 2018 January 29-30 and April 13 with the Nanshan 1-meter wide-field telescope operated by Xinjiang Astronomical Observatory. We obtain the morphological features of C/2015 O1 using an image enhancement method, and calculate the dust-activity parameter Af rho and the coma color based on photometric analysis. An obvious fan-shaped structure was observed at different observation times. We find that the activity of C/2015 O1 gradually decreases as the comet advances toward perihelion and the observed B - V and V - R colors are consistent with those of other comets.
Journal Title: Research in Astronomy and Astrophysics
Year Published: 2019
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