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Credit & Copyright: Damian Peach
Explanation:
As telescopes around planet Earth watch,
Mars
is growing brighter in
night skies, approaching its 2020 opposition on October 13.
Mars looks like its watching too in this view of
the Red Planet
from September 22.
Mars' disk is already near its maximum apparent size for
earthbound telescopes,
less than 1/80th the apparent diameter of a Full Moon.
The seasonally shrinking south polar cap is at the bottom and
hazy northern clouds are at the top.
A circular, dark albedo feature, Solis Lacus (Lake of the Sun), is just
below and left of disk center.
Surrounded by a light area south of Valles Marineris, Solis Lacus
looks like a planet-sized pupil, famously known as
The Eye of Mars
.
Near the turn of the 20th century, astronomer and avid
Mars
watcher Percival Lowell
associated the Eye of Mars with a conjunction of
canals
he charted
in his drawings
of the Red Planet.
Broad, visible changes in the size and shape of the Eye of Mars
are now
understood
from high resolution surface images to be due to
dust transported by winds in the thin
Martian atmosphere.
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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
Publications with keywords: Mars
Publications with words: Mars
See also:
- Full Moon, Full Mars
- APOD: 2025 January 15 Á Wolf Moon Engulfs Mars
- APOD: 2024 December 3 Á Ice Clouds over a Red Planet
- APOD: 2024 November 10 Á Valles Marineris: The Grand Canyon of Mars
- APOD: 2024 September 9 Á Mars: Moon, Craters, and Volcanos
- APOD: 2024 June 5 Á Shadow of a Martian Robot
- Ares 3 Landing Site: The Martian Revisited