Ground-Based Observations of Cloud Features on Uranus

Authors: Sromovsky L.A.¹; Spencer J.R.²; Baines K.H.³; Fry P.M.⁴

Source: Icarus, Volume 146, Number 1, July 2000 , pp. 307-311(5)

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Abstract:

NSFCAM observations at 1.7 m in 1998 and 1999 recorded the first discrete cloud features to appear in ground-based digital images of Uranus and the brightest such feature ever observed. The differential contributions of these northern hemisphere features to Uranus' disk-integrated brightness range from 0.8±0.2% and 0.11±0.3% for two 1998 features, to 4.9±0.7% for one 1999 feature, which is four times the value measured in 1998 NICMOS images at similar wavelengths. Copyright 2000 Academic Press.

Language: English

Document Type: Short communication

Affiliations: 1: Space Science and Engineering Center, University of Wisconsin, Madison, Wisconsin, 53706 2: Lowell Observatory, Flagstaff, Arizona, 86001 3: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109 4: Space Science and Engineering Center, University of Wisconsin, Madison, Wisconsin, 53706

Publication date: 2000-07-01