Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.sai.msu.su/apod/ap131025.html
Дата изменения: Unknown
Дата индексирования: Fri Feb 28 21:46:07 2014
Кодировка:

Поисковые слова: active galaxy
APOD: 2013 October 25 - NGC 7814: The Little Sombrero in Pegasus

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.

2013 October 25
See Explanation.  Clicking on the picture will download
 the highest resolution version available.

NGC 7814: The Little Sombrero in Pegasus
Image Credit & Copyright: Ken Crawford (Rancho Del Sol Obs.)
Collaboration: David Martinez-Delgado ( ARI-ZAH, Univ. Heidelberg)

Explanation: Point your telescope toward the high flying constellation Pegasus and you can find this expanse of Milky Way stars and distant galaxies. Centered on NGC 7814, the pretty field of view would almost be covered by a full moon. NGC 7814 is sometimes called the Little Sombrero for its resemblance to the brighter more famous M104, the Sombrero Galaxy. Both Sombrero and Little Sombrero are spiral galaxies seen edge-on, and both have extensive central bulges cut by a thinner disk with dust lanes in silhouette. In fact, NGC 7814 is some 40 million light-years away and an estimated 60,000 light-years across. That actually makes the Little Sombrero about the same physical size as its better known namesake, appearing to be smaller and fainter only because it is farther away. A very faint dwarf galaxy, potentially a satellite of NGC 7814, is revealed in the deep exposure just below the Little Sombrero.

Tomorrow's picture: Caroline's Rose


< | Archive | Index | Search | Calendar | RSS | Education | About APOD | Discuss | >

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.