Mars at Opposition (the Acidalia Region)

This image is centered near the location of the Pathfinder landing site. Dark sand dunes that surround the polar cap merge into a large, dark region called Acidalia. This area, as shown by images from the Hubble telescope and other spacecraft, is composed of dark, sand-sized grains of pulverized volcanic rock. Below and to the left of Acidalia are the massive Martian canyon systems of Valles Marineris, some of which form long linear markings that were once thought by some to be canals. Early morning clouds can be seen along the left limb of the planet, and a large cyclonic storm composed of water ice is churning near the polar cap.

Credit:

Steve Lee (University of Colorado), Jim Bell (Cornell University), Mike Wolff (Space Science Institute), and NASA/ESA

About the Image

NASA press release
NASA caption
Id:opo9927b
Type:Observation
Release date:30 June 1999, 15:00
Size:800 x 800 px

About the Object

Name:Acidalia, Mars
Type:• Solar System : Planet
• X - Solar System Images/Videos

Colours & filters

BandWavelengthTelescope
Optical
B
410 nm Hubble Space Telescope
WFPC2
Optical
V
502 nm Hubble Space Telescope
WFPC2
Optical
R
673 nm Hubble Space Telescope
WFPC2

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