Abstract
Thirty photometric magnitudes, in each filter (UBV), of P/Halley (1982i) have been measured on 1986, January 12. They show short-term variability of about 0.15 magnitude. The present measurements show the active nature of the comet.
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Goraya, P.S., Srivastava, R.K. & Uddin, W. Brightness changes in P/Halley. Earth Moon Planet 40, 109–110 (1988). https://doi.org/10.1007/BF00057949
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DOI: https://doi.org/10.1007/BF00057949