Perevod: N.A.Lipunova
Poyasnenie:
Polyarnye siyaniya chasto predstavlyayut velikolepnoe zrelishe.
Eto zelenoe polyarnoe siyanie
(sm. foto)
raskinulos' v nebe nad bezmyatezhnym
ozerom Portidzh (Portage Lake) i zasnezhennymi
gorami Chugach (Chugach Mountains) vozle mestechka Ankoridzh (Anchorage)
na Alyaske
(SShA).
Peizazh snyat v lunnuyu noch'.
Na pervyi vzglyad polyarnye siyaniya napominayut zalitye lunnym svetom oblaka. V otlichie ot oblakov
oni prozrachny, a nebo blagodarya im stanovitsya svetlee.
V severnom polusharii oni nazyvayutsya
severnymi polyarnymi siyaniyami. Prichinoi vozniknoveniya
polyarnyh siyanii yavlyaetsya svechenie
zaryazhennyh chastic solnechnogo vetra, popavshih
v zemnuyu atmosferu.
Nablyudeniya, provedennye iz kosmosa, pokazyvayut, chto polyarnye siyaniya
svetyat takzhe v
rentgenovskom diapazone.
Poyavlenie polyarnyh siyanii obychno sleduet ozhidat' spustya neskol'ko dnei posle
ocherednogo vspleska
aktivnosti na
Solnce.
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Publikacii s klyuchevymi slovami:
aurora - mountains - polyarnoe siyanie - gora
Publikacii so slovami: aurora - mountains - polyarnoe siyanie - gora | |
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