NASA's Hubble Shows Jupiter's Great Red Spot is Smaller than Ever Measured
Jupiter's Great Red Spot is Smaller than Ever
Images of Jupiter's Great Red Spot, taken by the Hubble Space Telescope over a span of 20 years, shows how the planet's trademark spot has decreased in size over the years
Jupiter's trademark Great Red Spot -- a swirling anti-cyclonic storm larger than Earth -- has shrunk to its smallest size ever measured. According to Amy Simon of NASA's Goddard Space Flight Center in Greenbelt, Maryland, recent NASA Hubble Space Telescope observations confirm the Great Red Spot now is approximately 10,250 miles across. Astronomers have followed this downsizing since the 1930s.
Historic observations as far back as the late 1800s gauged the storm to be as large as 25,500 miles on its long axis. NASA Voyager 1 and Voyager 2 flybys of Jupiter in 1979 measured it to be 14,500 miles across. In 1995, a Hubble photo showed the long axis of the spot at an estimated 13,020 miles across. And in a 2009 photo, it was measured at 11,130 miles across.
Beginning in 2012, amateur observations revealed a noticeable increase in the rate at which the spot is shrinking -- by 580 miles per year -- changing its shape from an oval to a circle.
"In our new observations it is apparent very small eddies are feeding into the storm," said Simon. "We hypothesized these may be responsible for the accelerated change by altering the internal dynamics and energy of the Great Red Spot."
Simon's team plans to study the motions of the small eddies and the internal dynamics of the storm to determine whether these eddies can feed or sap momentum entering the upwelling vortex, resulting in this yet unexplained shrinkage.
The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. Goddard Space Flight Center manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, Inc., in Washington.
For images and more information about Hubble, visit:
NASA, ESA, and A. Simon (Goddard Space Flight Center)
Lisenziya
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or . For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
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Fayl Faylin tarixcesi Fayl kecidleri Faylin qlobal istifadesiSinaq gosterisi olcusu 800 500 piksel Diger olculer 320 200 piksel 640 400 piksel 1 200 750 piksel Faylin orijinali 8206 1 200 750 piksel fayl hecmi 526 KB MIME novu image jpeg Bu fayl Vikimedia Commons dadirve diger layihelerde istifade edile biler Faylin tesvir sehifesine get Xulase IzahNASA14135 Jupiter GreatRedSpot Shrinks 20140515 jpg English May 15 2014 RELEASE 14 135http www nasa gov press 2014 may nasas hubble shows jupiters great red spot is smaller than ever measured NASA s Hubble Shows Jupiter s Great Red Spot is Smaller than Ever MeasuredJupiter s Great Red Spot is Smaller than EverImages of Jupiter s Great Red Spot taken by the Hubble Space Telescope over a span of 20 years shows how the planet s trademark spot has decreased in size over the yearsJupiter s trademark Great Red Spot a swirling anti cyclonic storm larger than Earth has shrunk to its smallest size ever measured According to Amy Simon of NASA s Goddard Space Flight Center in Greenbelt Maryland recent NASA Hubble Space Telescope observations confirm the Great Red Spot now is approximately 10 250 miles across Astronomers have followed this downsizing since the 1930s Historic observations as far back as the late 1800s gauged the storm to be as large as 25 500 miles on its long axis NASA Voyager 1 and Voyager 2 flybys of Jupiter in 1979 measured it to be 14 500 miles across In 1995 a Hubble photo showed the long axis of the spot at an estimated 13 020 miles across And in a 2009 photo it was measured at 11 130 miles across Beginning in 2012 amateur observations revealed a noticeable increase in the rate at which the spot is shrinking by 580 miles per year changing its shape from an oval to a circle In our new observations it is apparent very small eddies are feeding into the storm said Simon We hypothesized these may be responsible for the accelerated change by altering the internal dynamics and energy of the Great Red Spot Simon s team plans to study the motions of the small eddies and the internal dynamics of the storm to determine whether these eddies can feed or sap momentum entering the upwelling vortex resulting in this yet unexplained shrinkage The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency Goddard Space Flight Center manages the telescope The Space Telescope Science Institute STScI in Baltimore conducts Hubble science operations STScI is operated for NASA by the Association of Universities for Research in Astronomy Inc in Washington For images and more information about Hubble visit http www nasa gov hubble Tarix 1995 2014 Menbe http www nasa gov sites default files 14 135 jupiter2 0 jpg Muellif NASA ESA and A Simon Goddard Space Flight Center Lisenziya Public domain Public domain false false This file is in the public domain because it was created by NASA and ESA NASA Hubble material and ESA Hubble material prior to 2009 is copyright free and may be freely used as in the public domain without fee on the condition that only NASA STScI and or ESA is credited as the source of the material This license does not apply if ESA material created after 2008 or source material from other organizations is in use The material was created for NASA by Space Telescope Science Institute under Contract NAS5 26555 or for ESA by the Hubble European Space Agency Information Centre Copyright statement at hubblesite org or 2008 copyright statement at spacetelescope org For material created by the European Space Agency on the spacetelescope org site since 2009 use the ESA Hubble tag Faylin tarixcesi Faylin evvelki versiyasini gormek ucun gun tarix bolmesindeki tarixlere klikleyin Tarix VaxtKicik sekilOlculerIstifadeciSerh indiki13 00 16 may 20141 200 750 526 KB DrbogdanUser created page with UploadWizard Fayl kecidleri Bu sekile olan kecidler Yupiter planet Faylin qlobal istifadesi Bu fayl asagidaki vikilerde istifade olunur ar wikipedia org 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