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Rapid changes of brightness in P/Halley

✍ Scribed by P. S. Goraya; Wahab Uddin; R. K. Srivastava

Book ID: 104626548
Publisher: Springer Netherlands
Year: 1987
Tongue: English
Weight: 303 KB
Volume: 38
Category: Article
ISSN: 1573-0794
DOI: 10.1007/bf00115937

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✦ Synopsis

The results of photometric measurements (in UBV filters) of Comet P/Halley during four nights in January 1986 have been presented. Rapid recurring increases of P/Halley's brightness were observed during these four nights. This phenomenon seemed to occur at a time interval of about 23.7 + 0.3 hr. The maximum variation of brightness during an individual night amounts to AU -Om70; AB -0'1165, and AV -0'!'66 in U, B, and V filters, respectively. Rapid irregular short-lived fluctuations of brightness of the order of O?l were also found present during an individual night. The present observations show the active nature of P/Halley.

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