HST Imaging of 1 Ceres

Details HST Imaging of 1 Ceres HST Imaging of 1 Ceres

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dps....28.1025m&link_type=abstract

American Astronomical Society, DPS meeting #28, #10.25; Bulletin of the American Astronomical Society, Vol. 28, p.1101

Astronomy and Astrophysics

Astronomy

3

Scientific paper

We have obtained high resolution images of asteroid 1 Ceres using the Faint Object Camera of the Hubble Space Telescope in the F/96 mode. The images, taken over four orbits in June 1995, are in three bandpasses: near-UV (342 nm), mid-UV (276 nm), and far-UV (160 nm). Best resolution, limited by the PSF, is obtained at 160 nm, while the best S/N is achieved at 342 nm. At 160 nm, each resolution element, slightly larger than a pixel, corresponds to a linear dimension of 53 km at the asteroid. Therefore, Ceres is about 18 resolution elements in diameter and 240 elements cover the disk. These data are the first direct albedo maps for Ceres. Distinct surface units can be seen, some spanning hundreds of km. We will present and discuss these intriguing images.

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