Great Red Spot - Great Red Spot The Great Red Spot (GRS) is...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Great Red Spot The Great Red Spot (GRS) is a persistent anticyclonic storm , 22° south of Jupiter's equator, which has lasted for at least 181 years and possibly longer than 346 years. [65] [66] The storm is large enough to be visible through Earth -based telescopes . An infrared image of GRS (top) showing its warm center, taken by the ground based Very Large Telescope. An image made by the Hubble Space Telescope (bottom) is shown for comparison. The GRS rotates counterclockwise, with a period of about six Earth days [67] or 14 Jovian days. Its dimensions are 24–40,000 km west–to–east and 12–14,000 km south–to–north. The spot is large enough to contain two or three planets the size of Earth. At the start of 2004, the Great Red Spot had approximately half the longitudinal extent it had a century ago, when it was 40,000 km in diameter. At the present rate of reduction it could potentially become circular by 2040, although this is unlikely because of the distortion effect of the neighboring jet streams. [68] It is not known how long the spot will last, or whether the change is a result of normal fluctuations. [69] According to a study by scientists at the University of California, Berkeley , between 1996 and 2006 the spot lost 15 percent of its diameter along its major axis. Xylar Asay-Davis, who was on
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

Page1 / 2

Great Red Spot - Great Red Spot The Great Red Spot (GRS) is...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online