Astronomy Picture of the Day Archives

Brokenfriend · 09-17-2013, 01:42 AM

Here's another cool picture. If you click on the picture,it makes the picture larger,and if you click on the upper right hand side,you can see two galaxies touching their boundaries.

Because of gravity,they may combine over billions of years,or they may do something different. Who knows?

If anyone sees something cool please point it out to me. Everyone on Earth has insight about something,and there are astronomers out there that might not be working in astronomy.

2013 September 17:Galaxy Cluster Abell 1689 Deflects light.

BF

waves · 09-17-2013, 04:41 AM

Quote:

Originally Posted by Brokenfriend

Here's another cool picture. If you click on the picture,it makes the picture larger,and if you click on the upper right hand side,you can see two galaxies touching their boundaries.

Because of gravity,they may combine over billions of years,or they may do something different. Who knows?

If anyone sees something cool please point it out to me. Everyone on Earth has insight about something,and there are astronomers out there that might not be working in astronomy.

2013 September 17:Galaxy Cluster Abell 1689 Deflects light.

BF

Very cool!

link: http://apod.nasa.gov/apod/ap130917.html

Quote:

Explanation: It is one of the most massive objects in the visible universe. In this view from the Hubble Space Telescope's Advanced Camera for Surveys, Abell 1689 is seen to warp space as predicted by Einstein's theory of gravity -- deflecting light from individual galaxies which lie behind the cluster to produce multiple, curved images. The power of this enormous gravitational lens depends on its mass, but the visible matter, in the form of the cluster's yellowish galaxies, only accounts for about one percent of the mass needed to make the observed bluish arcing images of background galaxies. In fact, most of the gravitational mass required to warp space enough to explain this cosmic scale lensing is in the form of still mysterious dark matter. As the dominant source of Abell 1689's gravity, the dark matter's unseen presence is mapped out by the lensed arcs and distorted background galaxy images. Surprisingly, close inspection of the above image has revealed the presence of over 100,000 globular star clusters in the galaxy cluster.

Brokenfriend · 09-21-2013, 01:08 AM

Look at all of these Galaxies after a third click.

This one is from about two years ago.

2011 June 29:Abell 2744: Pandora's Cluster of Galaxies.

BF

Mari · 09-21-2013, 03:02 AM

Quote:

Originally Posted by Brokenfriend

Look at all of these Galaxies after a third click.

This one is from about two years ago.

2011 June 29:Abell 2744: Pandora's Cluster of Galaxies.

BF

Hi, Steve,

http://apod.nasa.gov/apod/ap110629.html

Quote:

The above picture combines optical images from the Hubble Space Telescope and the Very Large Telescope with X-ray images from the Chandra X-Ray Observatory. Abell 2744, dubbed Pandora's cluster, spans over two million light years and can best be seen with a really large telescope toward the constellation of the Sculptor.

Mari

Brokenfriend · 09-21-2013, 03:07 AM

Thank you Mari. I hope that you have a nice weekend. BF

waves · 09-21-2013, 05:02 AM

Quote:

Originally Posted by Brokenfriend

Look at all of these Galaxies after a third click.
.
2011 June 29:Abell 2744: Pandora's Cluster of Galaxies.

Quote:

Originally Posted by Mari

http://apod.nasa.gov/apod/ap110629.html

Very pretty!

Thanks Steve and Mari!

Brokenfriend · 09-27-2013, 01:11 AM

I found this Nebula in the archives.

2011 December 27:M27: The Dumbbell Nebula

I like the blue colors in this Nebula.

BF

Mari · 09-27-2013, 01:27 AM

Here is the link. The picture is beautiful.

http://apod.nasa.gov/apod/ap111227.html

Quote:

Explanation: The first hint of what will become of our Sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets.

The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, the type of nebula our Sun will produce when nuclear fusion stops in its core.

M27 is one of the brightest planetary nebulae on the sky, and can be seen toward the constellation of the Fox (Vulpecula) with binoculars

M

Brokenfriend · 09-30-2013, 01:12 AM

Here's a long dark Nebula.

2013 September 29: The Fairy of Eagle Nebula

BF

Mari · 09-30-2013, 09:08 AM

Thank you for sending this our way.

Here is the link:

http://apod.nasa.gov/apod/ap130929.html

Quote:

The dust sculptures of the Eagle Nebula are evaporating. As powerful starlight whittles away these cool cosmic mountains, the statuesque pillars that remain might be imagined as mythical beasts.
Pictured above is one of several striking dust pillars of the Eagle Nebula that might be described as a gigantic alien fairy. This fairy, however, is ten light years tall and spews radiation much hotter than common fire.

M

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