Астронет: Астрономическая картинка дня Слоновий хобот и Караван http://variable-stars.ru/db/msg/1756751/eng |
Credit & Copyright: Robert Eder
Explanation:
Like an illustration in a galactic
Just So Story, the
Elephant's Trunk Nebula
winds through the emission nebula and young star cluster
complex IC 1396, in the high and far off
constellation
of Cepheus.
Also known as vdB 142,
seen on the left the cosmic elephant's trunk is over 20 light-years long.
Removed by digital processing, no
visible stars are in this
detailed telescopic close-up view highlighting the bright swept-back ridges
that outline pockets of cool
interstellar
dust and gas.
But the dark,
tendril-shaped clouds contain the
raw material for star formation and hide
protostars within.
Nearly 3,000
light-years
distant, the relatively faint IC 1396 complex
covers a large region on the sky, spanning over 5 degrees.
This starless rendition
spans a 1 degree wide field of view though,
about the angular size of 2 full moons.
Of course
the dark shapes below and right, marching toward the winding Elephant's
Trunk, are known to some as The Caravan.
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.