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Every year the earth orbits the sun in the same plane as the galactic disk so it is closer to the galactic center by the diameter of the earth's orbit late June- July than it is in January when the sun is between the earth and the galactic center.
That is also the time the earth is 5 million miles further from the sun (perhaps because it is the gravity from the galaxy that is distorting the orbit). One can not argue that the gravity of the galaxy is not keeping the solar system and all the othe stars in orbit around it! I would like to calculate what that gravitational force must be to balance the solar systems centripetal force acting to fling it outward.
The Earth is closest to the center of the galaxy late June. We are perhaps not coincidentally both 5 million miles further away from the sun at that time, and at the same time we are on the side of the orbit that faces the galactic center. is it perhaps the gravity of the galaxy that is pulling on our earths orbit as well, making it slightly elliptic?
The size of our orbit is less than one billionth the distance to the center of the galaxy, so comparatively we really aren't much closer.
My astrophysicists friends say that we are too far from the center of the galaxy for it's gravity to have any significant influence upon us, although it is evident that the gravitational forces are strong enough to keep us and all the other stars in orbit around it.
We have no idea of what still unknown other forces and energies might be emitted as the super black hole at the galaxies center as it slowly consumes the surrounding galaxy sucking the surrounding stars down the super massive black hole as the rest of the galaxy slowly turn about in the same way water turns as it's going down the drain pipe.
The earths not quite circular orbit around the sun is in the same plane as galactic orbit.
If any gravity or other influence from this super massive black hole and the combined mass of the rest of the galaxy arrives as far as we are, this field might vary when the sun and the galactic center are together overhead in January compared to when the sun and the galactic center are on opposite sides of us in late June early July.
By coincidence, that the sun opposes the galactic center at around the same time the as the summer solstice, when the Northern Hemisphere is tipped toward the sun during the end of June. Therefore the Southern Hemisphere would be tilted toward the collect the center.
Summer solstice
This puts the galactic center square overhead and the sun behind us once a year for a few days around the June 23 solstace, at midnight, 0000hours, anywhere near the tropic of Capricorn (23.5 deg South) This latitude includes South Africa, Australia and Argentina. If there were to be any attempt to look for any galactic gravitational or 'radiation' variation, from a terrestrial viewpoint, this would be the best time and the best locations for observation.
What else can I help you with?
Would the distance between the Milky Way to the next nearest galaxy be the lenght of a light year?
The Canis Major Dwarf Galaxy is currently considered to be the closest galaxy to the Milky Way. It is 25,000 light years from our solar system and 42,000 light years from the center of the Milky Way. Its status as a galaxy is still disputed in some scientific circles. If the Canis Major Dwarf Galaxy loses its galaxy status, then the Sagittarius Dwarf Spheroidal Galaxy would reacquire the title as the Milky Way's closest neighbor. It is it is roughly 50,000 light years from the center of the Milky Way.
Will there be a galactic alignment in 2012?
Yes, there's a galactic alignment every year. As the earth goes around the sun, at one point the earth, sun, and the center of the galaxy line up.
What year was Journey to the Center of the Earth made?
Journey to the center to the earth was made in the year 2008.
What point is the orbital velcity of earth the greatest?
At perihelion, when the Earth is closest to the Sun, about January 4 each year.
Earth is closest to the sun on or about?
January 3, each year.
How many stars are 1 light year from the stars?
I assume that you meant to ask "How many stars are 1 light year from the earth?"The answer is none.The closest star to us is Alpha Centauri which is 4 light years away.Unless you count our own sun which is 8 light minutes from the earth.If you meant to ask "How many stars are 1 light year from any other stars?"Then the answer is very many.There are many places within our Milky Way galaxy where stars are close together, especially near the center of the galaxy.
How far is the Andromeda Galaxy?
At the current estimates, the Andromeda Galaxy is about 2.54 million light years from us, and getting closer every year. At that rate, it is expected to "merge" not "collide" in about 4.5 billion years.
When is the planet mars closest to the earth?
August the 27th of this year (2009) is when Mars is to be the closest it has ever been to the earth. It is supposedly to be about the same size in the sky as the moon.
how many sundays is a earth day?
366.897 days is a space day
The earth is the closest to the sun at?
The `perihelion` is when a planet is closest to the sun in its orbit around the sun. for earth, this usually happens between 2nd-5th January each year.
Name of comet in 1997 that came closest to earth?
The comet that came closest to Earth in 1997 was Comet Hale-Bopp. It reached its closest approach to Earth in late March of that year, becoming one of the brightest comets visible from Earth in the twentieth century.
What orbits the Sun and how long does it take?
The sun orbits around the center of the galaxy. The orbital period is approximately 235 million years.
