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Астронет: Астрономическая картинка дня Южный Орион: от Пояса к Ведьме http://variable-stars.ru/db/msg/1227209/eng |
Credit & Copyright: StИphane Guisard
Explanation:
Do you recognize the belt of Orion in this image?
The familiar trio of stars,
visible to the unaided eye,
can be found across the upper left.
Otherwise, the southern part of the constellation Orion has taken
on a new look in
this unusually deep and wide view
First note that the lower left belt star,
Alnitak,
illuminates the dusty
reflection
nebula known as M78.
Directly below
Alnitak,
a close inspection will reveal the
Horsehead Nebula.
Farther right and below is the Orion Nebula,
M42,
itself visible to the unaided eye.
The brightest star in the frame, near the bottom right, is
Rigel.
A bright blue star, Rigel illuminates the ominously shaped dust patch known as the
Witch Head Nebula, visible as the
blue reflection nebula near the
lower right corner.
Finally, appearing as a vast red ring and encompassing the entire region, is
Barnard's Loop.
Humans
could see this entire menagerie, unaided, were their eyes
about 10,000 times more sensitive.
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.