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Nová fotografie dalekohledu Jamese Webba ukazuje Neptun tak, jak jste ho nikdy předtím neviděli

Vesmírný dalekohled Jamese Webba pořídil velkolepý nový snímek Neptunu a jeho prstenců.

Pokud jde o planety v naší sluneční soustavě s prstenci, většina lidí si okamžitě vzpomene na Saturn – ikonického prstencového plynného obra s vířícími atmosférickými pásy mraků a armádou malých měsíců.

Ale v naší sluneční soustavě je další planeta s prstenci – Neptun.

Nachází se daleko za oběžnou dráhou Uranu, Neptun je 8. (a nejvzdálenější) planeta od Slunce.Na

17 násobek hmotnosti Země, je mnohem větší než náš vlastní svět a vykazuje výraznou modrou barvu pouhým okem kvůli stopám metanu v nejvzdálenějších částech jeho atmosféry.

Jeho prstencový systém je mnohem méně zřejmý než saturnský, ale přesto tam je. Existují tři hlavní prstence – každý z nich se skládá z ledových částic potažených křemičitany nebo materiálem na bázi uhlíku.

Prstence jsou na fotografii pozoruhodně jasné, zatímco samotný Neptun vypadá jasně bíle.

“Prstence jsou v infračerveném oboru více reflexní,” říká Mark McCaughrean z ESA.

“Takže jsou mnohem lépe vidět.”

Na snímku je také vidět několik Neptunových měsíců. “Druh astronomie, kterou nyní vidíme, byl před pěti lety nepředstavitelný,” řekl McCaughrean.

zdroj: The Guardian, Titulní fotografie: NASA / ESA / CSA / STSCI



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