Comments and questions about the
APOD on the main view screen.
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APOD Robot
- Otto Posterman
- Posts: 5612
- Joined: Fri Dec 04, 2009 3:27 am
Post
by APOD Robot » Sun Oct 23, 2016 4:06 am
Eagle Aurora over Norway
Explanation: What's that in the sky? An aurora. A large
coronal mass ejection occurred on our Sun five days before this 2012 image was taken,
throwing a cloud of fast moving electrons, protons, and ions
toward the Earth. Although most of this cloud passed above the Earth, some of it impacted our Earth's
magnetosphere and resulted in
spectacular auroras being seen at high northern latitudes.
Featured here is a particularly photogenic
auroral corona captured above
Grotfjord,
Norway. To some, this
shimmering green glow of recombining atmospheric
oxygen might appear as a large
eagle, but feel free to
share what it looks like to you. Although now past
Solar Maximum, our Sun continues to
show occasional activity creating
impressive auroras on Earth
visible only last week.
[/b]
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cheggers
- Asternaut
- Posts: 8
- Joined: Tue Sep 25, 2012 7:26 am
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by cheggers » Sun Oct 23, 2016 5:08 am
It's the visage of old dapper dead Cthulhu.
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Stevie
Post
by Stevie » Sun Oct 23, 2016 5:23 am
A lenticular cloud over a mountaintop
If you stand beneath an aurora that is directly overhead, like in the photo, does it mean all the electrons are coming down on you? Is it equivalent to radiation exposure?
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BillBixby
- Science Officer
- Posts: 147
- Joined: Tue Jul 10, 2012 6:57 pm
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by BillBixby » Sun Oct 23, 2016 5:49 am
It was beautiful then, it is beautiful now. This is one of the first pictures I shared with friends to show what APOD is. I also love the angel. But the views are really whatever we see. Thank you APOD for finding me and allowing me to share you. Thank you to the core persons for putting up with me and my comments.
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Chris Peterson
- Abominable Snowman
- Posts: 18623
- Joined: Wed Jan 31, 2007 11:13 pm
- Location: Guffey, Colorado, USA
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by Chris Peterson » Sun Oct 23, 2016 5:49 am
Stevie wrote:A lenticular cloud over a mountaintop
If you stand beneath an aurora that is directly overhead, like in the photo, does it mean all the electrons are coming down on you? Is it equivalent to radiation exposure?
Well, you might be in the path of the charged particles. But all that light is the energy being dissipated 100 km overhead. The particles aren't reaching the ground.
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Saeed Khan
- Asternaut
- Posts: 3
- Joined: Sun Oct 23, 2016 7:10 am
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by Saeed Khan » Sun Oct 23, 2016 7:20 am
Niagara Falls.
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heehaw
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by heehaw » Sun Oct 23, 2016 9:30 am
Chris Peterson wrote:[... The particles aren't reaching the ground.
Whereas when Elon Musk et al are living on Mars, the particles WILL be reaching the ground. Nasty.
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ta152h0
- Schooled
- Posts: 1399
- Joined: Mon Aug 29, 2005 12:46 am
- Location: Auburn, Washington, USA
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by ta152h0 » Sun Oct 23, 2016 2:23 pm
Tadpole nebula Jr
Wolf Kotenberg
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Chris Peterson
- Abominable Snowman
- Posts: 18623
- Joined: Wed Jan 31, 2007 11:13 pm
- Location: Guffey, Colorado, USA
Post
by Chris Peterson » Sun Oct 23, 2016 2:30 pm
heehaw wrote:Chris Peterson wrote:[... The particles aren't reaching the ground.
Whereas when Elon Musk et al are living on Mars, the particles WILL be reaching the ground. Nasty.
Well, the ground on Mars is itself quite inhospitable and nasty. Not like you can survive there without very good shelter. Underground makes the most sense, and that means good shielding. Not a lot to do on the surface for extended periods, either, even with a suit.
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Roula
Post
by Roula » Sun Oct 23, 2016 9:00 pm
It looks like a phoenix to us.
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Maoz
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by Maoz » Tue Oct 25, 2016 9:27 am
This looks the guardian of earth, looking toward the out of sky under his green cape and robe, his head equally in a cap that goes along with the robe and he is holding a sword in his left hand, his arm, hidden by the cloth seems like he dash toward in a effort to protect us. I also imagine the wings like he was an angel that comes out from his shoulder.
