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

Research output: Contribution to journalArticle

4 Scopus citations


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)156-161
Number of pages6
Issue number1
Publication statusPublished - Mar 2006



  • Comets
  • Photometry
  • Spectrophotometry

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Hergenrother, C. W., Mueller, B. E. A., Campins, H., Samarasinha, N. H., & Mccarthy, D. W. (2006). R- and J-band photometry of Comets 2P/Encke and 9P/Tempel 1. Icarus, 181(1), 156-161. https://doi.org/10.1016/j.icarus.2005.09.017