some say that the sun revolves around the black hole.what is black hole.
2007-02-27 23:19:22 · 11 answers · asked by Rajneesh S 1 in Science & Mathematics ➔ Astronomy & Space
A black hole is a star that has collapsed on itself due to the extreme gravitational forces produced from its sheer massiveness. Just as the Earth's gravity pulls on the moon, keeping it in orbit, it is likely that a black hole exists at the center of our galaxy, keeping all of the stars revolving around it.
Therefore...
The sun, and you, and me, and all the stars that we can see,
Are moving at a million miles a day,
In an outer spiral arm, at forty-thousand miles per hour
Of the galaxy we call the Milky Way.
2007-02-27 23:23:55 · answer #1 · answered by Guncrazy 4 · 1⤊ 0⤋
The Sun moves through space at a few million miles per day.
Considering the vastness of space, this is a small distance.
To say we orbit the galactic centre is an oversimplification. The galaxy is not a simple gravitational system like the Sun-Planets system.
It is certainly quite wrong to suppose that one object (black hole or not) is a central gravity source affecting the whole galaxy including the sun... a few billion stars spread into a (probably barred spiral) disc shape, plus up to 10 times that mass in dark matter spread in a disc and or halo also contribute.
If black holes are your main interest, look up how by studying quasars, theorists are now wondering if all galaxies START with violent black holes, but calm down later. Do black holes eventually evaporate?
Astronomy does not know the answer to a lot of the questions about galactic dynamics and evolution.
2007-02-28 01:25:43 · answer #2 · answered by Stargazer 3 · 0⤊ 0⤋
The sun revolves around the center of the galaxy. At the center of the galaxy is a super massive black hole. This black hole is bigger than any black hole a super nova can create.
2007-02-28 00:27:19 · answer #3 · answered by bldudas 4 · 0⤊ 0⤋
it revolves around the center of our galaxy, which is thought to be a black hole!
as for what is a black hole, that's a totally different subject, I'll only try to summ it up in a few words.
It's a former star (like our sun but 1000s of times bigger), which in its last stage of its lifespan contracted to the size of a tennis ball. (yeah I know it sounds science fiction, but that's most probably what happens). While contracting it remains the same weight, so now you have the weight of a star 1000s of times bigger than our sun put in the size of a regular ball, which increases dramatically the force of its gravity. Gravity is the force which keeps us humans on the surface of the earth. Well that black hole's gravity is milions and milions and milions of times stronger. So strong that it attracts light and light then can't get out of it, so it's black!
this is probably the worst possible explanation you can get, but also the best possible in this little text area :)
2007-02-27 23:35:46 · answer #4 · answered by tomes12 2 · 0⤊ 0⤋
It is revolving around a big black hole in the middle of our galaxy, the black hole is as big as the distence from earth to the sun 93 million miles and that is a small one even though it is 93 million miles big.
2007-02-28 00:42:15 · answer #5 · answered by Prince_Krona 2 · 0⤊ 0⤋
Well, just like the python head previously said, the sun IS moving as viewed from outside our galaxy. Our solar system is on one minor arm of the milky way galaxy. The milky way rotates around a center, and the galaxy itself is moving away from the "center" of the universe with all the other galaxies.
As viewed from earth, the sun is NOT moving. We (and all the other planets) are moving around the sun. The planets circling does produce a slight wobble in our sun (sort of like an ice skater doing a camel spin) but nothing that is visible from our perspective.
2007-02-27 23:30:59 · answer #6 · answered by taliswoman 4 · 0⤊ 0⤋
The sun revolves in space as a part of the galaxy which is rotating. The galaxy also travels in space. Thus the sun in moving in multiple directions as is the Earth along with it.
There are estimates for galaxitic rotation as well as for galactic travel. These are in the realm of 250,000 to 400,000 miles per hour.
2007-02-28 01:17:43 · answer #7 · answered by Anonymous · 0⤊ 0⤋
It's going around the center of the galaxy.
Not as an orbit but as a unit.
It is stationary with regards to the galaxy.
2007-02-28 00:57:20 · answer #8 · answered by Billy Butthead 7 · 0⤊ 0⤋
ACCORDING TO QURAAN (THE HOLY BOOK OF MUSLIMS) WHICH WAS REVEALED ON TO PROPHET MUHAMMAD PB UH ABOUT 1400 YEARS AGO. IT SAYS THAT ALL CELESTIAL BODIES ARE IN MOTION. PREVIOUSLY THE SCIENCE USED TO CONSIDER THAT SUN IS STATIONARY AND ALL CELESTIAL BODIES ARE REVOLVING AROUND IT BUT RECENTLY THE SCIENCE HAS PROVED THAT IT WAS WRONG AND THE SUN IS MOVING TOO. IT IS YET TO BE KNOWN/REVEALED THAT AROUND WHICH EVERY THING IS MOVING.
2007-02-27 23:33:12 · answer #9 · answered by SAZA 1 · 0⤊ 0⤋
On real of earth they does no longer be table sure because of the fact earth spins besides. in case you recommend in area, it fairly is because of the fact the area they are placed (the geostationary orbit) is the place the gravitational pulls of the Earth and the sunlight are equivalent
2016-09-30 00:24:53 · answer #10 · answered by ? 4 · 0⤊ 0⤋