Explanation: What are these two giant arches across the sky? Perhaps the more familiar one, on the left, is the central band of our Milky Way Galaxy. This grand disk of stars and nebulas here appears to encircle much of the southern sky. Visible below the stellar arch is the rusty-orange planet Mars and the extended Andromeda galaxy. For a few minutes during this cold artic night, a second giant arch appeared to the right, encircling part of the northern sky: an aurora. Auroras are much closer than stars as they are composed of glowing air high in Earth's atmosphere. Visible outside the green auroral arch is the group of stars popularly known as the Big Dipper. The featured digital composite of 18 images was captured in mid-December over the in Norway.

APOD Year in Review (2020): RJN's Night Sky Network Lecture

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Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr'

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Milky Way - aurora - Mlechnyi Put' - severnoe siyanie Publikacii so slovami: Milky Way - aurora - Mlechnyi Put' - severnoe siyanie
Sm. takzhe: Novogodnie severnye siyaniya Rozhdestvenskaya elka iz severnogo siyaniya Polyarnoe siyanie vokrug severnogo polyusa Saturna Zima i leto na malen'koi planete Puteshestvie k centru Galaktiki Mlechnyi Put' nad ostrovom Pashi Raznocvetnoe polyarnoe siyanie nad Novoi Zelandiei Vse publikacii na tu zhe temu >>