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Астронет: Астрономическая картинка дня Скопление галактик в Персее http://www.variable-stars.ru/db/msg/1210670/eng |
Credit & Copyright: Ken Crawford
(Rancho Del Sol Observatory)
Explanation:
Here is one of the
largest objects that anyone will
ever see on the sky.
Each of these fuzzy blobs is a galaxy, together making up the
Perseus Cluster, one of the closest
clusters
of galaxies.
The cluster is seen through a foreground of faint stars in our own
Milky Way Galaxy.
Near the cluster center, roughly 250 million light-years
away, is the cluster's dominant galaxy NGC 1275,
seen
here just left of picture center.
A prodigious source of
x-rays and radio emission,
NGC 1275 accretes
matter as gas and galaxies fall into it.
The Perseus Cluster of Galaxies
is part of the
Pisces-Perseus supercluster
spanning over 15 degrees and containing over 1,000 galaxies.
At the distance of NGC 1275, this view covers about 1.5 million
light-years.
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.