2006-12-11 22:09:25 · 15 answers · asked by fuchtig 1 in Science & Mathematics ➔ Astronomy & Space
Bamma find this subject fascinating. Bamma idol was Carl Sagen. Bamma never study subject though. Bamma does have expandable mind. Bamma picturing universe now. Bamma have a thought. Bamma think about donut shape universe he hear about. Bamma know the outter edge of universe get bigger and bigger. Bamma say supposing donut hole also get bigger. Bamma say what if the hole grow at a faster rate than the edge. Bamma say it chasing down everything. Bamma say gobbling it up. Bamma say what if the two eventually meet. Bamma say the hole eat everything. Bamma say there no longer anything pulling the hole. Bamma say hole gets tired and shrinks. Bamma say there your recycling universe. Bamma say he have no idea what he talking about. Bamma just wonder if this theory already. Bamma wanna know.
2006-12-11 22:38:44 · answer #1 · answered by Anonymous · 4⤊ 1⤋
The Milky Way
Astronomers focusing on a star at the center of the Milky Way say they have measured precisely for the first time how long it takes the sun to circle its home galaxy: 226 million years. The last time the sun was at this exact spot of its galactic orbit, dinosaurs ruled the world.
Using a radio telescope system that measures celestial distances 500 times more accurately than the Hubble Space Telescope, astronomers plotted the motion of the Milky Way and found that the sun and its family of planets were orbiting the galaxy at about 135 miles per second.
That means it takes the solar system about 226 million years to orbit the Milky Way and puts the most precise value ever determined on one of the fundamental motions of the Earth and its sun, said James Moran of Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass.
2006-12-11 22:13:58 · answer #2 · answered by Basement Bob 6 · 1⤊ 2⤋
Technically, what is going on is that the Earth, Sun and all the planets are orbiting around the center of mass of the solar system. This is actually how planets orbiting other stars are often detected, by searching for the motion of the stars they orbit that is caused by the fact that the star is orbiting the center of mass of the system, causing it to wobble on the sky.
The center of mass of our solar system very close to the Sun itself, but not exactly at the Sun's center (it is actually a little bit outside the radius of the Sun). However, since almost all of the mass within the solar system is contained in the Sun, its motion is only a slight wobble in comparison to the motion of the planets. Therefore, assuming that the Sun is stationary and the planets revolve around its center is a good enough approximation for most purposes.
2006-12-11 22:14:34 · answer #3 · answered by Candy 2 · 1⤊ 2⤋
The sun is orbiting the center of our galaxy, the so called Milky Way. One time revolving takes about 250 million years.
2006-12-11 22:21:07 · answer #4 · answered by jhstha 4 · 2⤊ 1⤋
I hope it's not an astronomer asking this question, but I'll have to say that the Sun is just stationary while the planets are just orbiting it. Let's not forget that it's the massive gravitational pull of the sun which is keeping the Milky Way in one piece. You can do some research at NASA website if you are really eager for the answer to that question.
2006-12-11 22:29:15 · answer #5 · answered by M.C. 2 · 0⤊ 3⤋
I don't believe I've encountered this anywhere
Maybe our whole galaxy moves
Maybe it dances cha-cha or the foxtrot or the little (forgive the spelling) cotillion thing going on...
Why should we worry about that?
Let's just all try to focus on things that we can do something about
Unless of course some benefit can be gained from knowing whether or not the sun is orbiting something; in which case, I'm extremely sorry for my ignorance
2006-12-11 22:14:07 · answer #6 · answered by sedatedeyes209 4 · 1⤊ 2⤋
yes sun is orbiting. but remember it sun goes around the milky way galaxy. it takes a 250 million years.
2006-12-11 22:20:13 · answer #7 · answered by partha malakar 1 · 2⤊ 1⤋
I believe we are orbiting the galactic core, continuing outward from the center to the end of forever.
2006-12-12 01:14:44 · answer #8 · answered by boots 6 · 0⤊ 0⤋
the sun is orbiting the center of are galaxy , and at the center of are galaxy they think is a black hole.
2006-12-12 00:09:43 · answer #9 · answered by WILLIAM M 1 · 1⤊ 0⤋
because the path of our sun is changed due to to the gravity of blackhole at the centre.actly according to einsteen's theory of relativity the universe is having th carpet of sme matter or energy having dimensions in space in time so if the dimension of the sun is i suspect is changed by the black hole of our galaxy
2006-12-12 00:03:15 · answer #10 · answered by Anonymous · 0⤊ 0⤋