Abstract
Observations of P/Tempel 2 at 1.25-20.0 micron during its 1983 and 1988 apparitions are presented. The thermal emission from the nucleus was monitored, and the dust production rate during the 1988 apparition is estimated. We find that the nucleus can contribute up to 40 percent of the total 10 micron flux even near perihelion and that P/Tempel 2 has a dust production rate that is typical of short-period comets. The J - H color of the nucleus, 0.65 +/- 0.05, is the reddest of any observed so far. The geometric albedo of the nucleus at 1.25-2.20 micron was found to be 0.04-0.07.
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