by APOD Robot » Tue Feb 08, 2022 5:06 am
Aurora and Light Pillars over Norway
Explanation: Which half of this sky is your favorite? On the left, the night sky is lit up by particles expelled from the
Sun that later collided with
Earth's upper atmosphere â creating bright auroras. On the right, the night glows with ground lights reflected by millions of tiny
ice crystals falling from the sky â creating
light pillars. And in the center, the astrophotographer presents your choices. The
light pillars are vertical columns because the fluttering ice-crystals are
mostly flat to the ground, and their colors are those of the ground lights. The auroras cover the sky and ground in the
green hue of glowing oxygen, while their transparency is clear because you can see stars right through them. Distant stars dot the background, including bright stars from the iconic constellation of
Orion. The featured image was captured in a single exposure two months ago near
Kautokeino,
Norway.
[url=https://apod.nasa.gov/apod/ap220208.html] [img]https://apod.nasa.gov/apod/calendar/S_220208.jpg[/img] [size=150]Aurora and Light Pillars over Norway[/size][/url]
[b] Explanation: [/b] Which half of this sky is your favorite? On the left, the night sky is lit up by particles expelled from the [url=https://solarsystem.nasa.gov/solar-system/sun/overview/]Sun[/url] that later collided with [url=https://www.nasa.gov/mission_pages/sunearth/science/mos-upper-atmosphere.html]Earth's upper atmosphere[/url] â creating bright auroras. On the right, the night glows with ground lights reflected by millions of tiny [url=https://en.wikipedia.org/wiki/Ice_crystals]ice crystals[/url] falling from the sky â creating [url=http://www.atoptics.co.uk/halo/lpil.htm]light pillars[/url]. And in the center, the astrophotographer presents your choices. The [url=https://apod.nasa.gov/apod/ap160208.html]light pillars[/url] are vertical columns because the fluttering ice-crystals are [url=https://ap-pics2.gotpoem.com/ap-pics/item/14788/92.jpg]mostly flat[/url] to the ground, and their colors are those of the ground lights. The auroras cover the sky and ground in the [url=http://www.webexhibits.org/causesofcolor/4D.html]green[/url] hue of glowing oxygen, while their transparency is clear because you can see stars right through them. Distant stars dot the background, including bright stars from the iconic constellation of [url=https://apod.nasa.gov/apod/ap220118.html]Orion[/url]. The featured image was captured in a single exposure two months ago near [url=https://youtu.be/YJu_aUHeVL4]Kautokeino[/url], [url=https://en.wikipedia.org/wiki/Norway]Norway[/url].
[table][tr][td=left][url=https://asterisk.apod.com/discuss_apod.php?date=220207][b]<< Previous APOD[/b][/url][/td] [td=center][url=https://asterisk.apod.com/view_retro.php?date=0208][b]This Day in APOD[/b][/url][/td] [td=right][url=https://asterisk.apod.com/discuss_apod.php?date=220209][b]Next APOD >>[/b][/url][/td][/tr][/table]