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Diagram of the occultation viewed from Chicago, IL.
Click on image for full size
Courtesy of the International Occultation Timing Association

Rare Occultation of Regulus!
News story originally written on May 13, 1999

An occultation of the star Regulus can be seen on May 21-22, 1999. A repeat of such a great event will not occur again until the next century. Most of the United States, Mexico and Canada will have a great view. The public is encouraged to videotape it.

An occultation is a type of eclipse. In this case, the first-quarter moon will completely cover the star, hiding it from view.

Regulus, the brightest star in the constellation Leo, will be visible on the left side of the moon. Exact times according to location are listed on the link below, along with other information on the moon and occultation.

Scientists plan to use the event to study climate.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA