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Астронет: Астрономическая картинка дня У самой черной дыры http://variable-stars.ru/db/msg/1162229/eng |
Credit & Copyright: Robert Nemiroff
(MTU)
Explanation:
What would you see if you went right up to a
black hole?
Above are two computer generated images
highlighting how strange things would look.
On the left is a normal star field containing the
constellation Orion.
Notice the three stars of nearly equal brightness that make up
Orion's Belt.
On the right is the same star field but this time with a
black hole superposed in the center of the frame.
The
black hole has such strong
gravity that light is noticeably bent towards it -
causing some very unusual
visual distortions.
In the distorted frame, every star in the normal frame
has at least two bright images - one on each side of the
black hole.
In fact, near the
black hole, you can see the whole sky -
light from every direction is
bent around and comes back to you.
Black holes are thought to be the densest state of matter,
and there is indirect evidence for their presence in
stellar binary systems
and the centers of
globular clusters,
galaxies, and
quasars.
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.