Science Can you comprehend it?

**Dave Lane** · 11-02-2011, 09:17 PM

The Pelican Nebula (also known as IC5070 and IC5067) is an H II region associated with the North America Nebula in the constellation Cygnus. The nebula resembles a pelican in shape, hence the name. The Pelican Nebula is a large area of emission nebula in the constellation Cygnus (the Swan), close to Deneb, and divided from its brighter, larger neighbor, the North America Nebula, by a molecular cloud filled with dark dust.

The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.

Finally got a good set of shots of the Pelican Nebula... I kinda like this pic.

4th and Long · 11-02-2011, 09:48 PM

That is a beautiful picture. I envy you.

Rep!

**Dave Lane** · 11-04-2011, 01:33 PM

New pic of same object I started with last year. I think my sklls are increasing.

Quote:

Originally Posted by Dave Lane

First pic. Of Orion M43 from last night...

New Orion Picture from this year...

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south[b] of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.

The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula. There are also supersonic "bullets" of gas piercing the dense hydrogen clouds of the Orion Nebula. Each bullet is ten times the diameter of Pluto's orbit and tipped with iron atoms glowing bright blue. They were probably formed one thousand years ago from an unknown violent event.

4th and Long · 11-04-2011, 02:16 PM

Quote:

Originally Posted by Dave Lane

New pic of same object I started with last year. I think my sklls are increasing.

New Orion Picture from this year...

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south[b] of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. Older texts frequently referred to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.

The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula. There are also supersonic "bullets" of gas piercing the dense hydrogen clouds of the Orion Nebula. Each bullet is ten times the diameter of Pluto's orbit and tipped with iron atoms glowing bright blue. They were probably formed one thousand years ago from an unknown violent event.

Huffmeister · 11-04-2011, 02:47 PM

So is it even remotely possible that star systems could have already formed in this cloud? Or is it still in a violent stage that planet formation is unlikely?

I just had a weird thought of being part of an alien species that evolved on a planet somewhere within this cloud, and what it would look like from within. Or, being on a planet close by (but way outside the nebula) so that the nebula would rise and set in the sky as a HUGE constellation. That would be awesome.

11-02-2011, 09:17 PM	#1
Dave Lane Space Cadet and Aczabel Join Date: Aug 2000 Location: Kanab, UT, USA Casino cash: $9333275 VARSITY	The Pelican Nebula (also known as IC5070 and IC5067) is an H II region associated with the North America Nebula in the constellation Cygnus. The nebula resembles a pelican in shape, hence the name. The Pelican Nebula is a large area of emission nebula in the constellation Cygnus (the Swan), close to Deneb, and divided from its brighter, larger neighbor, the North America Nebula, by a molecular cloud filled with dark dust. The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different. Finally got a good set of shots of the Pelican Nebula... I kinda like this pic. Attached Thumbnails __________________ Thanks, Trump for the civics lesson. We are learning so much about RICO, espionage, sedition, impeachment, the 25th Amendment, order of succession, nepotism, separation of powers, 1st Amendment, obstruction of justice, the emoluments clause, conflicts of interest, collusion, sanctions, oligarchs, money laundering and so much more.
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11-02-2011, 09:48 PM	#2
4th and Long Wheeeeee!!! Join Date: Nov 2003 Location: In a house Casino cash: $9254925	That is a beautiful picture. I envy you. Rep! __________________
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11-04-2011, 02:47 PM	#5
Huffmeister Veteran Join Date: Apr 2004 Location: Kansas City, MO Casino cash: $9904277	So is it even remotely possible that star systems could have already formed in this cloud? Or is it still in a violent stage that planet formation is unlikely? I just had a weird thought of being part of an alien species that evolved on a planet somewhere within this cloud, and what it would look like from within. Or, being on a planet close by (but way outside the nebula) so that the nebula would rise and set in the sky as a HUGE constellation. That would be awesome.
Posts: 1,245