PULL · 20 NOV 2011 This was
This was
your sky.
W5: Pillars of Star Formation
NASA APOD · Lori Allen, Xavier Koenig
(Harvard-Smithsonian CfA)
et al.,
JPL-Caltech,
NASA
COSMIC MESSAGE
The Spitzer Space Telescope studied star-forming region W5, providing clues about how stars form. Massive stars near the center of empty cavities appear older than stars at the edges. This suggests that older stars in the center trigger the formation of younger stars at the edges. This triggered formation happens when hot, outflowing gas compresses cooler gas into dense knots that then contract into new stars.
CREDIT
© COPYRIGHTED Lori Allen, Xavier Koenig
(Harvard-Smithsonian CfA)
et al.,
JPL-Caltech,
NASA · Lori Allen, Xavier Koenig
(Harvard-Smithsonian CfA)
et al.,
JPL-Caltech,
NASA · used by permission via NASA APOD · not for redistribution.
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SB-2011-11-20
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COMMON 
2011-11-20 · ♏
SKYBORN
W5: Pillars of Star Formation
NASA APOD · Lori Allen, Xavier Koenig
(Harvard-Smithsonian CfA)
et al.,
JPL-Caltech,
NASA
BORN 5334 days ago
SKYBORN.APP
ZODIAC CONTEXT
♏
SCORPIO
In tropical astrology, 20 NOV 2011 falls under Scorpio (♏). The sign's window runs from 10-23 through 11-21. Scorpio is marked by Antares, a red supergiant the size of Mars's orbit. The Sun was crossing this region of the sky on 20 NOV 2011.
THE ALMANAC FOR 20 NOV 2011
DAY
Sunday
MOON
Waning crescent, 28% lit
POSITION
Day 324 of 365
METEOR SHOWER
Leonid shower, peaked 3 days ago
SAME DAY, OTHER YEARS