 |
Астронет: Астрономическая картинка дня Deimos Before Sunrise http://www.variable-stars.ru/db/msg/1964511 |
Credit & Copyright: NASA,
JPL-Caltech
Explanation:
Deimos takes
30 hours and 18 minutes to
complete one orbit around the Red Planet.
That's a little more than one Martian day or sol which is
about 24 hours and 40 minutes long, so
Deimos drifts westward across the Martian sky.
About 15 kilometers across at its widest,
the smallest of Mars' two moons is bright though.
In fact Deimos is the brightest celestial object in
this Martian skyscape
captured before sunrise by
Perseverance
on March 1, the 1,433rd sol of the Mars rover's mission.
The image is a composed of 16 exposures recorded by
one of the rover's navigation cameras.
The individual exposures were combined into a single image
for an enhanced low light view.
Regulus and Algeiba, bright stars in the constellation Leo, are also
visible in the
dark Martian predawn sky.
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.
Based on Astronomy Picture
Of the Day