Ontario Lacus

Ontario Lacus
RADAR-image of Ontario Lacus taken by Cassini on January 12, 2010.
Feature typeLacus
Coordinates72°S 183°W / 72°S 183°W / -72; -183
Diameter235 km[note 1]
Surface area20,000 km2
EponymLake Ontario
Infrared image of Titan's south polar region. Ontario Lacus is the dark feature at centre-left.
Radar image of Titan's south polar region, showing Ontario Lacus and surroundings. In the annotated version, the putative shoreline of a proposed former south polar sea of Titan is outlined.

Ontario Lacus is a lake composed of methane, ethane and propane near the south pole of Saturn's moon Titan. Its character as a hydrocarbon lake was confirmed[1] by observations from the Cassini spacecraft, published in the 31 July 2008 edition of Nature. Ontario Lacus has a surface area of about 15,000 square kilometers (5,800 sq mi), about 20% smaller than its terrestrial namesake, Lake Ontario in North America. In April 2012, it was announced that it may be more like a mudflat or salt pan.[2]


Cite error: There are <ref group=note> tags on this page, but the references will not show without a {{reflist|group=note}} template (see the help page).

  1. ^ "NASA Confirms Liquid Lake On Saturn Moon". NASA. 2007-07-30. Retrieved 2007-07-30.
  2. ^ "Cassini Finds Titan Lake is Like a Namibia Mudflat - NASA". Jet Propulsion Laboratory. Archived from the original on 2012-05-06. Retrieved 2012-04-21.