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Астронет: Астрономическая картинка дня Ночь над Покер Флэт http://variable-stars.ru/db/msg/1331539/eng |
Credit & Copyright: NASA / Jamie Adkins
Explanation:
Four NASA suborbital
sounding rockets leapt
into the night on January 26,
from the University of Alaska's
Poker Flat Research Range.
This time lapse composite image follows all
four launches of the small, multi-stage rockets to explore
winter's mesmerizing,
aurora-filled skies.
During the exposures, stars trailed around the North Celestial Pole,
high above the horizon at the site 30 miles north of Fairbanks, Alaska.
Lidar, beams of pulsed green lasers,
also left traces through the scene.
Operating successfully, the payloads lofted were two
Mesosphere-Lower Thermosphere Turbulence Experiments
(M-TeX)
and two Mesospheric Inversion-layer Stratified Turbulence
(MIST)
experiments,
creating vapor trails
at high altitudes to be tracked by ground-based
observations.
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.