This picture shows differences in the speed of rotation of material in the Sun. The red regions are rotating the fastest, while the dark blue regions rotate the slowest. This diagram was produced by Stanford University from data recorded over twelve months beginning in May 1996. The data comes from the Michelson Doppler Imager (MDI) of the Solar and Heliospheric Observatory (SOHO), which is located at a gravitational equilibrium point between the Earth and the Sun. This image is provided here courtesy of the SOHO/MDI consortium. SOHO is a project of international cooperation between the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA). |
The star chart background was produced on a Macintosh with the Voyager II program,
and are ©1988-93 Carina Software,
830 Williams St., San Leandro, CA 94577, (510) 352-7328. Used under license.
©1999 Scott
R. Anderson Last update: 1999 October 12 Please send questions, comments, suggestions, or corrections to srca@mindspring.com. The material on this website may be reused as described under the Open Course License. The Gateway to Educational Materials (GEM) is the key to one-stop, any-stop access to thousands of high quality lesson plans, curriculum units and other education resources on the Internet! GEM is a project of the U.S. Department of Education. The Introduction to Astronomy Webbook is catalogued in the Gateway, and Scott R. Anderson is a member of the GEM Consortium. |