Birth of Stars THREE

birStars form from the gravitational collapse of small "cores" deep inside giant molecular clouds. Since these clouds are opaque at optical wavelengths, the observations of these collapsing "protostars" must be conducted at radio and infrared wavelengths, where the clouds are more transparent. I will show how the observations reveal the various stages of star formation, from "starless cores," though "hot cores," and eventually, young stars. I will pay special attention to the most massive stars, whose origins are especially difficult to understand. A byproduct of this process is the origin of planets, and I will discuss some of the observational evidence that shows young solar systems in the process of formation.

Dr Jim Jackson, Chairman of Astronomy Dept, Boston University
Seagrave Observatory - August 3, 2007 at 7:30 pm
47 Peeptoad Road, Scituate, Rhode Island 02857
http://www.theskyscrapers.org/

Category:

News & Politics

Tags:

• astronomy
• stars
• star_birth
• SkyScrapers

[JesterAzazel]

The moon only appears bigger because it's much closer..

The difference is that a star is a big flaming ball of gas, and a moon is a little rock that orbits a planet.. The reason it is so bright is because it's reflecting light from the sun..

The moon is 1/3 the size of Earth, the sun is over 100 times the size of Earth..

Also there are other stars over 100 times the size of our sun, like Antares..

[majortom321]

wats the difference between a star and a moon?

and why is the moon bigger than most stars?