APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Comments and questions about the APOD on the main view screen.
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APOD Robot
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APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by APOD Robot » Fri Oct 03, 2014 4:05 am

Image Aurora and Milky Way in a Little Sky

Explanation: Stepping stones seem to lead to the Milky Way as it stretches across this little sky. Of course, the scene is really the northern hemisphere's autumnal equinox night. Water and sky are inverted by a top to bottom, around the horizon stereographic projection centered on the zenith above Lake Storsjön in Jämtland, Sweden. In the north the Milky Way arcs from east to west overhead as fall begins, but the season is also a good time for viewing aurora. Geomagnetic storms increase in frequency near the equinox and produce remarkable displays of northern lights at high latitudes, like the eerie greenish glow reflected in this watery cosmos.

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julianm3

Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by julianm3 » Fri Oct 03, 2014 5:18 am

Great picture!

Why does the aurora increase around the equinox? I would have guessed that it would be highest around one of the solstices.

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Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by Nitpicker » Fri Oct 03, 2014 12:29 pm

julianm3 wrote:Great picture!

Why does the aurora increase around the equinox? I would have guessed that it would be highest around one of the solstices.
I didn't know that either. Seems that it is still a mystery, though not entirely. See:
http://en.wikipedia.org/wiki/Aurora#Fre ... occurrence

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Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by Boomer12k » Fri Oct 03, 2014 1:16 pm

So...THAT is what it all looks like to a FISH... :D

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C0ppert0p
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Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by C0ppert0p » Fri Oct 03, 2014 9:29 pm

It's the Stargate!

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Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by Boomer12k » Sat Oct 04, 2014 2:09 am

Amazing...the "illusion"....

The sky...being enclosed...looks like a lake, with reflections,...and the Lake...being on Earth...looks like it is outside the Galaxy.....WHEW....I'm DIZZY!! :lol2:

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Re: APOD: Aurora and Milky Way in a Little Sky (2014 Oct 03)

Post by DavidLeodis » Sat Oct 04, 2014 10:22 am

I wonder if Storsjöodjuret saw the impressive scene? :P