Hubble Views Collossal Polar Cyclone on Mars

The discovery image of the Martian polar storm as seen in blue light (410 nm). The storm is located near 65 deg. N latitude and 85 deg. W longitude, and is more than 1000 miles (1600 km) across. The residual north polar water ice cap is at top. A belt of clouds like that seen in previous telescopic observations during this Martian season can also be seen in the planet's equatorial regions and northern mid-latitudes, as well as in the southern polar regions. The volcano Ascraeus Mons can be seen as a dark spot poking above the cloud deck near the western (morning) limb; this extinct volcano towers nearly 16 miles (25 km) above the surrounding plains, and is about 250 miles (400 km) across.

Credit:

Jim Bell (Cornell U.), Steve Lee (U. Colorado), Mike Wolff (SSI), andNASA/ESA

About the Image

NASA press release
NASA caption
Id:opo9922b
Type:Observation
Release date:19 May 1999, 06:00
Size:371 x 371 px

About the Object

Name:Mars
Type:• Solar System : Planet : Feature : Atmosphere : Storm
• 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

Image Formats

Large JPEG
32.3 KB
Screensize JPEG
87.1 KB

Also see our