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Astronomy Picture of the Day
The Lagoon Nebula in Gas, Dust, and Stars
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#102398
by
[z]Barbara Harris
@
17.07.2007 00:00
- nach oben -
The Lagoon Nebula in Gas, Dust, and Stars
Explanation:
Stars are battling gas and dust in the Lagoon Nebula
but the photographers are winning.
Also known as M8,
this photogenic nebula
is
visible
even without binoculars towards the
constellation
of
Sagittarius
.
The energetic processes of
star formation
create not
only the colors but the
chaos
.
The
red-glowing gas
results from high-energy starlight striking interstellar
hydrogen
gas.
The dark
dust
filaments
that lace
M8
were created in
the atmospheres of cool
giant stars
and in the
debris
from
supernovae
explosions.
The light from
M8
we see today left about
5,000 years ago
.
Light takes about 50 years to cross this section of
M8
.
Note: The main APOD web site experienced serious problems
this weekend, but has now been restored.
Sorry, and thanks for your patience and concerned emails! - eds.
Credit & Copyright