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8th August 2011, 08:22
Comet are dirty snowballs with tails of blowing gases and interplanetary dust millions of miles long. (they say)
As a comet moves closer into the center of the Solar System, the Sun's heat releases gases from the comet, creating a cloud around the comet's core. Particles hurled out by the Sun, called solar winds, distort the cloud around the comet to.
This picture shows that Halley's orbit doesn't even go beyond that of Pluto. You can just see the comet and its tail inside the orbit of Venus near perihelion. The planets are NOT drawn to scale. They are shown bigger so the viewer can recognize them.
http://cse.ssl.berkeley.edu/segwayed/lessons/cometstale/images/Halley_orbit.gif
It takes 76 years for Comet Halley to complete one trip around the Sun.
Where do comets spend their time? Why do some comets come near the Sun and become bright? What makes these comets different? And how is it that some comets, like Comet Halley, return again and again?
How hot can it get in space?
As hot as the surface of a star, about 5000 degrees celcius if you are close to the sun but there are stars that are hotter.
In deep space though without stars around the temperature drops to minus 270 degrees.
Scientists can't see Comets core, but they estimate some to be about 25 miles in diameter. The big dirty snowball has huge chunks of ice and great gobs of tiny interplanetary dust particles mixed together.
So if a comet survives this trip around the Sun without melting, i guess we can say it survived a trip to hell and back.
And it seem to survive many laps before breaking up, maby it snow deeper out in space and it keep building up that ice?
I suggest there be no ice left after a lap around the sun. Or anything left that still can make that tail the comets do, if it make that
trip.
To be honest wid you, I dont think the comets are big dirty snowballs at all.
What do you think?
As a comet moves closer into the center of the Solar System, the Sun's heat releases gases from the comet, creating a cloud around the comet's core. Particles hurled out by the Sun, called solar winds, distort the cloud around the comet to.
This picture shows that Halley's orbit doesn't even go beyond that of Pluto. You can just see the comet and its tail inside the orbit of Venus near perihelion. The planets are NOT drawn to scale. They are shown bigger so the viewer can recognize them.
http://cse.ssl.berkeley.edu/segwayed/lessons/cometstale/images/Halley_orbit.gif
It takes 76 years for Comet Halley to complete one trip around the Sun.
Where do comets spend their time? Why do some comets come near the Sun and become bright? What makes these comets different? And how is it that some comets, like Comet Halley, return again and again?
How hot can it get in space?
As hot as the surface of a star, about 5000 degrees celcius if you are close to the sun but there are stars that are hotter.
In deep space though without stars around the temperature drops to minus 270 degrees.
Scientists can't see Comets core, but they estimate some to be about 25 miles in diameter. The big dirty snowball has huge chunks of ice and great gobs of tiny interplanetary dust particles mixed together.
So if a comet survives this trip around the Sun without melting, i guess we can say it survived a trip to hell and back.
And it seem to survive many laps before breaking up, maby it snow deeper out in space and it keep building up that ice?
I suggest there be no ice left after a lap around the sun. Or anything left that still can make that tail the comets do, if it make that
trip.
To be honest wid you, I dont think the comets are big dirty snowballs at all.
What do you think?