These pictures are based on data acquired by instruments operated by participating members of the Global Oscillation Network
Group (GONG). These include the Big Bear Solar Observatory, High Altitude Observatory, Learmonth Solar Observatory, Udaipur Solar Observatory, Instituto de Astrofísico de Canarias, and Cerro Tololo Interamerican Observatory. These observatories are located around the world, providing almost uninterrupted observation of the Sun.
These pictures are courtesy of the Global Oscillation Network Group, managed by the National Solar Observatory, a Division of the National Optical Astronomy Observatories, which is operated by Association of Universities for Research in Astronomy, Inc. under a cooperative agreement with the National Science Foundation.
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.
Last update: 1999 October 11
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