Light curves and photometric parameters of the comets C/1999 S4 (LINEAR), C/2001 Q4 (NEAT), C/2002 T7 (LINEAR), C/2002 V1 (NEAT), C2004 Q2 (Machholz), and 153P/2002 C1 (Ikeya-Zhang) |
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| Authors: | K I Churyumov V S Filonenko L S Chubko |
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| Institution: | (1) Astronomical Observatory, Taras Shevchenko Kyiv National University, vul. Observatorna 3, Kyiv, 04053, Ukraine;(2) Institute of Astronomy, Karazin Kharkiv National University, vul. Sums’ka 35, Kharkiv, 61022, Ukraine |
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| Abstract: | Light curves of six comets, C/1999 S4 (LINEAR), C/2001 Q4 (NEAT), C/2002 T7 (LINEAR), C/2002 V1 (NEAT), C/2004 Q2 (Machholz), and 153P/2002 C1 (Ikeya-Zhang), were built and investigated. The photometric parameters H 0, H 10, and n were calculated for these comets, and they were found to change both before and after perihelion. The shift of light curve peak with respect to perihelion passage moment was determined for each comet. Our white-light curves are compared to the results of polarimetric and electrophotometric observations of the comets C/2002 T7 (LINEAR) and C/2004 Q2 (Machholz). |
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