PLANET ADVOCATE Carolyn Porco writes:

There is a problem: all of the non-scientific references I'm aware of do not include the most current work (which was mine) which explains

(i) the most important dynamical information on the Uranus' rings, that is, that two of them are being shepherded by two of the Voyager- discovered small satellites, Cordelia and Ophelia, and

(ii) that the rings appear to be colorless. (Ed. note: using Hubble's spectrometer to discover the color and composition is one of the most exciting prospects for LFHST)

The reference below written by Ellis Miner is rather technical but does include some new results. But my (C. Porco) popular article for the Planetary Report does not.

Atlas of Uranus', by Garry Hunt and Patrick Moore, Cambridge University press, 1988.

Uranus: the Planet, Rings and Satellites, by Ellis Miner, Praxis Publishing Ltd, Chichester, England, 1990. (Praxis used to be Ellis Horwood Ltd, a division of Simon and Schuster.)

Porco, C.C. (1986) "Voyager 2 and the Uranian Rings", in the Planetary Report, V1, No. 6, p. 11-13.
There is a video, created at JPL, entitled: `Uranus: I will see such things' which discusses the discovery of Uranus in 1781 by William Hershel, and the Voyager 2 encounter. It apparently also includes a comprehensive discussion of the moons and rings, but again was created probably too early for it to have the latest information.

I just now received a list of web sites (which I haven't looked at myself) from Ellis Miner at JPL which include information on the planets. Here they are:

1) http://stardust.jpl.nasa.gov/planets/welcome/uranus.html This is put together by JPL and is part of a general intro duction to all the planets as viewed by spacecraft flown by JPL.

2) http://nssdc.gsfc.nasa.gov/planetary/planets/uranuspage.html As the address implies, this is an attempt to make NSSDC data, both general and detailed, on the planets available through internet access.

3) http://www.solarviews.com/eng/uranus.htm Calvin Hamilton at LANL has done as good a job at collecting tabular and pictorial data on the planets and their systems as any I have seen.

4) http://www.seds.org/billa/tnp/uranus.html Bill Arnett has his own home page with a number of good planetary summaries included in it. I think he used to be at the University of Arizona, but may no longer be associated with the University.

5) http://spacelink.nasa.gov/Instructional.Materials/Curriculum.Support/Space.Science/Our.Solar.System/Uranus/ A lot of teachers swear by NASA's Spacelink web page. It has actual curriculum materials directly usable in the classroom.