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Astronomy Picture of the Day
Eclipsed Moon in Infrared
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#72505
by
[z]Barbara Harris
@
24.04.2005 00:00
- nach oben -
Eclipsed Moon in Infrared
Explanation:
In September of 1996,
the
Midcourse
Space Experiment
(MSX) satellite had a spectacular view of
a total lunar eclipse
from Earth orbit
.
SPIRIT III, an on board infrared telescope, was used to
repeatedly image the moon
during the eclipse
.
Above is one of
the images taken during the 70 minute totality, the Moon completely
immersed in the Earth's shadow
.
Infrared light
has wavelengths
longer than visible light - humans can not see it but
feel it as heat
.
So, the bright spots correspond to the warm areas on
the lunar surface
,
and dark areas are cooler.
The brightest spot below and left of center is the
crater Tycho
, while
the dark region at the upper right is
the Mare Crisium
.
Of course, this
Sunday's lunar eclipse
will not be a total, or even a partial one.
Instead
, the Moon will glide
through the subtle outer portion
of the Earth's shadow in a penumbral
eclipse
of the Moon
.
Credit & Copyright