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2018-01-22
Joseph Zbukvich - "Tardes calmas" - Aguarela
Tardes calmas
Astronomy picture of the day - 2018 January 22 - An Immersive Visualization of the Galactic Center
An Immersive Visualization of the Galactic Center
Video Credit:
NASA
,
CXC
,
Pontifical Catholic Univ. of Chile
,
C. Russell et al.
Explanation:
What if you could look out from the center of our Galaxy -- what might you see? Two scientifically-determined possibilities are shown in the
featured video
, an immersive 360-degree view which allows you to look around in every direction. The
pictured computer simulation
is based on
infrared data
from
ESO
's
Very Large Telescope
in
Chile
and
X-ray
data from
NASA
's orbiting
Chandra X-ray Observatory
. As the video starts, you
quickly approach
Sgr A*
, the
supermassive black hole
in the
Galactic center
. Then looking out,
this 500-year time-lapse simulation
shows glowing gas and many points of light orbiting all around you. Many of these points are young
Wolf-Rayet star
s that have visible hot winds blowing out into surrounding nebulas. Clouds approaching close become elongated, while objects approaching
too close
fall in. Toward the video's end the
simulation repeats
, but this time with the dynamic region surrounding
Sgr A*
expelling hot gas that
pushes back
against approaching material.
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