Titan: Evidence for seasonal change-A comparison of Hubble space telescope and voyager images

John Caldwell, Cindy C. Cunningham, David Anthony, H. Peter White, E. J. Groth, H. Hasan, K. Noll, P. H. Smith, M. G. Tomasko, H. A. Weaver

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

Images of Titan were obtained by the Hubble Space Telescope (HST) on 26 August 1990. Comparison with Voyager 1 and Voyager 2 images obtained 10 and 9 years earlier shows that the seasonal hemispheric brightness asymmetry has reversed near 440 and 550 nm wavelengths, with the northern hemisphere now being brighter. An additional, noisy HST image at 889 nm wavelength, for which there are no analogous Voyager data, suggests that the southern hemisphere may have been brighter than the northern at that wavelength in 1990.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalIcarus
Volume97
Issue number1
DOIs
StatePublished - May 1992

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Caldwell, J., Cunningham, C. C., Anthony, D., Peter White, H., Groth, E. J., Hasan, H., Noll, K., Smith, P. H., Tomasko, M. G., & Weaver, H. A. (1992). Titan: Evidence for seasonal change-A comparison of Hubble space telescope and voyager images. Icarus, 97(1), 1-9. https://doi.org/10.1016/0019-1035(92)90053-A