Astronomy Picture of the Day Archives

ginnie · 06-15-2013, 06:17 PM

I put an H in there up near the top with TOE and String theory. Found a nice spot for it.
This is getting to be fun! hope your day went OK. My son is in bed, nursing whatever bug this is. ginnie

Mari · 06-16-2013, 03:29 AM

Quote:

Originally Posted by ginnie

I put an H in there up near the top with TOE and String theory. Found a nice spot for it.
This is getting to be fun! hope your day went OK. My son is in bed, nursing whatever bug this is. ginnie

Hi, Ginnie,

That is great!
And I hope that your son feels better soon.

Mari

Brokenfriend · 06-21-2013, 02:24 AM

This is a cool photo of the Milky Way. If you click on the picture,it gets bigger. If you click on the picture again,it gets even bigger,and you can go to different areas of the photo. I have a large monitor.

2013 June 19:Milky Way Over Crater Lake with Airglow

It's almost like looking at the stars. BF

Mari · 06-21-2013, 03:34 AM

Quote:

Originally Posted by Brokenfriend

or.

2013 June 19:Milky Way Over Crater Lake with Airglow

It's almost like looking at the stars. BF

Hi, Steve,

Here is the link. The picture is beautiful.
http://apod.nasa.gov/apod/ap130619.html

Quote:

First, in the foreground, is Crater Lake -- a caldera created by volcanism on planet Earth about 7,700 years ago.
Next, inside the lake, is water. Although the origin of the water in the crater is melted snowfall, the origin of water on Earth more generally is unclear, but possibly related to ancient Earthly-impacts of icy bodies.

Next, the green glow in the sky is airglow, light emitted by atoms high in the Earth's atmosphere as they recombine at night after being separated during the day by energetic sunlight. The many points of light in the sky are stars, glowing by nuclear fusion. They are far above the atmosphere but nearby to our Sun in the Milky Way Galaxy.

Finally, the bright arch across the image is the central band of the Milky Way, much further away, on the average, than the nearby stars, and shaped mostly by gravity. Contrary to appearances, the Milky Way band glows by itself and is not illuminated by the airglow.

The above image is a six-frame panorama taken about two weeks ago in Oregon, USA.

Mari

waves · 06-21-2013, 12:06 PM

That is breathtaking!

waves

Brokenfriend · 06-24-2013, 02:09 AM

If someone could bring this link to this page it would be great.

Click SOHO Space weather. Scroll all the way to the bottom of the thread,and click on the bottom left picture.

This shows the Sun,and the Earth's magnetic field,and how the Earth responds to a solar storms energy. The Earth's magnetic field stops the solar storms energy,and it deflects the solar energy to the Earth's poles. When the energy starts to go beyond Earth,and snaps back creating more Northern Lights,and Southern lights at the Earth's poles.

BF

Mari · 06-24-2013, 03:25 AM

Quote:

Originally Posted by Brokenfriend

If someone could bring this link to this page it would be great.

Click SOHO Space weather. Scroll all the way to the bottom of the thread,and click on the bottom left picture.

This shows the Sun,and the Earth's magnetic field,and how the Earth responds to a solar storms energy. The Earth's magnetic field stops the solar storms energy,and it deflects the solar energy to the Earth's poles. When the energy starts to go beyond Earth,and snaps back creating more Northern Lights,and Southern lights at the Earth's poles.

BF

Hi, Steve,

This is an amazing video!

http://sohowww.nascom.nasa.gov/class...ys_english.mp4

Thanks.

Mari

Brokenfriend · 06-24-2013, 03:42 AM

Thank you Mari. BF

Brokenfriend · 07-08-2013, 02:50 AM

This is Interesting. The dark matter is unusual if that's what it is.

2013 July 07. NGC 2170: Still Life with Reflecting Dust

BF

Mari · 07-08-2013, 02:54 AM

Hi, Steve,

Thank you for pointing out these photos for us.

Here is the link:
http://apod.nasa.gov/apod/ap130707.html

Quote:

Explanation: In this beautiful celestial still life composed with a cosmic brush, dusty nebula NGC 2170 shines at the upper left.

Reflecting the light of nearby hot stars, NGC 2170 is joined by other bluish reflection nebulae, a compact red emission region, and streamers of obscuring dust against a backdrop of stars.

Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation of the Unicorn (Monoceros).

The giant molecular cloud, Mon R2, is impressively close, estimated to be only 2,400 light-years or so away. At that distance, this canvas would be about 15 light-years across.

M

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