Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/1160814
Дата изменения: Sat Aug 14 16:33:23 2004
Дата индексирования: Tue Oct 2 18:03:47 2012
Кодировка:
Leonids from Leo
Astronomy Picture of the Day
    


Leonids from Leo
<< Yesterday 7.12.1998 Tomorrow >>
Leonids from Leo
Credit & Copyright: Juraj Toth (Comenius U. Bratislava), Modra Observatory
Explanation: Is Leo leaking? Leo, the famous sky constellation visible on the left of the above all-sky photograph, appears to be the source of all the meteors seen in this year's Leonids Meteor Shower. That Leonids point back to Leo is not a surprise - it is the reason this November meteor shower is called the Leonids. Sand-sized debris expelled from Comet Tempel-Tuttle follows a well-defined orbit about our Sun, and the part of the orbit that approaches Earth is superposed in front of the constellation Leo. Therefore, when Earth crosses this orbit, the radiant point of falling debris appears in Leo. Over 150 meteors can be seen in the above four-hour exposure. The Geminid Meteor Shower, which appears to eminate from the constellation of Gemini, peaks this coming weekend.

January
February
March
April
May
June
July
August
September
October
November
December
 < December 1998  >
Mo Tu We Th Fr Sa Su

123456
78910111213
14151617181920
21222324252627
28293031


Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Leonids - constellation - meteor
Publications with words: Leonids - constellation - meteor
See also:
All publications on this topic >>