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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Seven Leonids Over Wise Observatory

Explanation: More Leonids were visible at some places than others. In Israel, early in the morning of 17 November, it rained meteors though a clear sky. Observers there reported a peak rate for the 1998 Leonid Meteor Shower of about 600 meteors per hour . Visible in the above picture are no fewer than seven Leonid meteors occurring over just a few minutes. ( Can you find them all? ) The dome of the Wise Observatory is visible on the right. The Earth's rotation causes stars to appear as arcs . The 1998 Leonids might be remembered not for their numbers, however, but for the unusually high fraction of bright fireballs . Another eventful Leonid Meteor Shower is forecast for the same time next year.

Date November 24, 1998
Credit Credit: O. Gabzo (Wise Observatory)
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.