R- and J-band photometry of Comets 2P/Encke and 9P/Tempel 1

Carl W. Hergenrother, Beatrice E.A. Mueller, Humberto Campins, N. H. Samarasinha, Donald W. McCarthy

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Near-simultaneous R- and J-band photometric measurements of the short-period Comets 2P/Encke and the Deep Impact mission target 9P/Tempel 1 were obtained. The resulting R - J colors are + 0.82 ± 0.08   mag and + 1.46 ± 0.13   mag for Encke and Tempel 1, respectively. Tempel 1's color is redder than the solar R - J color index of +0.76. The Tempel 1 observations directly detected the nucleus while the Encke observations likely suffered from coma contamination.

Original languageEnglish (US)
Pages (from-to)45-50
Number of pages6
Issue number2 SUPPL.
StatePublished - Oct 24 2007



  • Comets
  • Photometry
  • Spectrophotometry

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Hergenrother, C. W., Mueller, B. E. A., Campins, H., Samarasinha, N. H., & McCarthy, D. W. (2007). R- and J-band photometry of Comets 2P/Encke and 9P/Tempel 1. Icarus, 191(2 SUPPL.), 45-50. https://doi.org/10.1016/j.icarus.2005.09.024