Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/apod/2013-08-31
Дата изменения: Sun Sep 1 15:38:50 2013
Дата индексирования: Sat Mar 1 03:18:50 2014
Кодировка:
NGC 5195: The Dot under the Question Mark
Astronomy Picture of the Day
    


NGC 5195: The Dot under the Question Mark
<< Yesterday 31.08.2013 Tomorrow >>
NGC 5195: The Dot under the Question Mark
Credit & Copyright: Hubble Legacy Archive, NASA, ESA - Processing: José Jiménez Priego
Explanation: Dwarf galaxy NGC 5195 is best known as the smaller companion of spiral M51, the Whirlpool galaxy. Seen together they seem to trace the curve and dot of a cosmic question mark, recorded in Lord Rosse's 19th century drawings as one of the original spiral nebulae. Dwarfed by enormous M51 (aka NGC 5194), NGC 5195 spans about 20,000 light-years. A close encounter with M51 has likely triggered star formation and enhanced that galaxy's prominent spiral arms. Processed from image data available in the Hubble Legacy Archive, this majestic close-up of NGC 5195 makes it clear that the dwarf galaxy now lies behind M51. A tidal bridge of dark dust clouds and young blue star clusters stretches from the outskirts of M51 on the right, appearing in silhouette against the dwarf galaxy's yellowish glow. The famous pair of interacting galaxies lie some 30 million light-years away, toward the handle of the Big Dipper, and the constellation of the Hunting Dogs.

January
February
March
April
May
June
July
August
September
October
November
December
 < August 2013  >
Mo Tu We Th Fr Sa Su



1234
567891011
12131415161718
19202122232425
262728293031
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: M 51 - spiral galaxy
Publications with words: M 51 - spiral galaxy
See also:
All publications on this topic >>