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Saturn's Upper Atmospheric Hazes Observed by the Hubble Space Telescope

Karkoschka, Erich; Tomasko, Martin G.

We observed Saturn with the Hubble Space Telescope at wavelengths 0.30-0.89 µm for the purpose of determining the distribution of hazes. In the stratosphere, haze optical depths in the ultraviolet are essentially zero for midnorthern latitudes, are small (∼0.2) at low latitudes and mid-southern latitudes, but large (almost unity) above 70° n…

Image Deconvolution of Extended Objects: A Comparison of the Inverse Fourier and the Lucy Techniques

Cunningham, C. C.; Anthony, D.

We have investigated the relative effectiveness of two deconvolution techniques in restoring spherically aberrated Hubble Space Telescope (HST) images. These images were restricted to extended objects (such as planets) of high signal-to-noise. Our reason for pursuing these studies was that one of the deconvolution methods, the Lucy iterative techn…