Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.289..155j&link_type=abstract
Nature, vol. 289, Jan. 15, 1981, p. 155, 156. Research supported by the National Research Council;
Astronomy and Astrophysics
Astronomy
9
Spaceborne Astronomy, Spectral Reflectance, Spectrophotometry, Tempel 2 Comet, Flyby Missions, High Resolution, Image Resolution, Solar System, Comets, Tempel 2 Comet, Spectrophotometry, Bursts, Observations, Spectrum, Reflectance, Data, Emissions, Flares, Procedure, Models, Brightness, Dust, Albedo
Scientific paper
Periodic comet Tempel-2, first discovered in 1873, is a possible target of a spacecraft flyby in the 1980s. Accurate physical measurements of this comet have only recently been attempted. Few spectrophotometric data exist for any faint comet, but such data are presented for Tempel-2 at a heliocentric distance of 2.97 AU. The data were obtained during an outburst in which the comet exhibited heightened CN and C3 emission over a quiescent phase. Comet flares of such magnitude are exceptional and are particularly surprising for a periodic comet at such a large heliocentric distance.
Johnson Paul E.
Shorthill Richard W.
Smith David W.
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