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Астронет: Астрономическая картинка дня M61: спиральная галактика в скоплении Вирго http://variable-stars.ru/db/msg/1163329/eng |
Credit & Copyright: Princeton University Press
Explanation:
M61 is a barred spiral galaxy located in the nearby
Virgo Cluster of Galaxies. Visible in
M61
are a host of features common to spiral
galaxies: bright
spiral arms, a
central bar,
dust lanes, and
bright knots of stars.
M61, also known as
NGC 4303, in similar to our own
Milky Way Galaxy.
M61 was discovered by telescope in 1779 twice on the same day,
but one observer initially mistook the galaxy for a comet.
Light from
M61 takes about 60 million years to reach us.
Recent observations of M61 have detected
unpredicted high velocity gas moving in its halo.
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.