Přeskočit na obsah

Soubor:55 Cancri e - PIA20068.jpg

Obsah stránky není podporován v jiných jazycích.
Z Wikipedie, otevřené encyklopedie

Původní soubor(3 840 × 2 160 pixelů, velikost souboru: 466 KB, MIME typ: image/jpeg)

Popis
English: This illustration shows one possible scenario for the hot, rocky exoplanet called 55 Cancri e, which is nearly two times as wide as Earth. New data from NASA's Spitzer Space Telescope show that the planet has extreme temperature swings from one side to the other-- and a possible reason for this might be the presence of lava pools.

This planet is tidally locked to its star, just as our moon is to Earth, which means that one side always sizzles under the heat of its star while the other side remains in the dark. If the planet were covered in lava, then the hot, sun-facing side of the planet would have liquid lava flows, while the colder, dark side would see solidified lava rock. The hardened lava would be unable to transport heat across the planet, explaining why Spitzer detected that the cold side of the planet is much colder than the hot side.

Such a lava planet, if it exists, would have dust streaming off of it, as illustrated here. Radiation and winds from the nearby star would blow off the material.

Scientists say that future observations with NASA's upcoming James Webb Space Telescope should provide more details about the nature of this exotic world.

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at the California Institute of Technology in Pasadena. Spacecraft operations are based at Lockheed Martin Space Systems Company, Littleton, Colorado. Data are archived at the Infrared Science Archive housed at the Infrared Processing and Analysis Center at Caltech. Caltech manages JPL for NASA.
Datum
Zdroj http://photojournal.jpl.nasa.gov/jpeg/PIA20068.jpg
Autor NASA/JPL-Caltech
Svolení
(Užití tohoto souboru)
Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

Popisky

Přidejte jednořádkové vysvětlení, co tento soubor představuje

Položky vyobrazené v tomto souboru

zobrazuje

097505101a3058aba3e08e44c2d2519a594ecdef

477 042 bajt

2 160 pixel

3 840 pixel

Historie souboru

Kliknutím na datum a čas se zobrazí tehdejší verze souboru.

Datum a časNáhledRozměryUživatelKomentář
současná27. 7. 2016, 09:01Náhled verze z 27. 7. 2016, 09:013 840 × 2 160 (466 KB)PlanetUserTransferred from http://photojournal.jpl.nasa.gov/jpeg/PIA20068.jpg

Tento soubor používá následující stránka:

Globální využití souboru