does anyone know about the earth moving toward the sun?

Question

so i heard a while back that the earth moves closer to the sun every year. if anyone can give me a site where i can get info or tell me how close it gets each year it will be great

Answer 1

The orbit of the earth around the sun is elliptical (like a squashed circle) so at times (winter in the northern hemisphere) it is closer to the sun then at other times. But this is cyclical and does not mean that the earth is moving toward the sun all the time. It will be stable in its elliptical orbit until the sun expands in another 5 billion years at the end of its life.

Answer 2

Earth's orbit is an ellipse, so there is, every year, a point where we are closest to the Sun (called perihelion from Greek words meaning close to the Sun) in January, and a point where we are furthest from the Sun (aphelion) in July.

The average of the two is called the Mean orbital distance.
Because of the effects of all the other planets (mostly Jupiter), our mean orbital distance changes a bit from year to year. It is presently increasing (meaning we are moving away) at a rate of approximately 500 km per year. Over long periods, the 'mean orbital distance' moves above and below the average mean orbital distance.

The Sun's mass is (very slowly) decreasing: think of Einstein's formula: E = mc^2. The Sun is putting out a lot of energy (light, heat...). Therefore, its mass diminishes.
Sure, it swallows up a few comets every once in a while, but it is still losing more than it gains. Because of that, our average mean orbital distance increases slightly over very long periods of time. It is to the order of at most 20 km per year (probably the 11.7 mi that zahbudar gives in his post)

Answer 3

Earth isn't at a constant distance from the Sun and through the year the distance varies, it is closest in January and farthest in early July,

The minimum distance is about 146 million km and the maximun one 152 million km

Having said that I believe the Earth isn't moving toward the sun at all. I'd even say that it is the contrary that is happening following the expansion of the universe ....

Here is what is written in a scientific article (reference below):
"An increase of the Earth-Sun distance is predicted and the rate of this removal is estimated."

Answer 4

giving the fact that we think that the earth is like 4.5 billion years old, there can't be that much of a change in its orbit.

a mile closer in 10 years, a mile further away .. in average such a change can't be in one direction for above reason, cause within 4.5 billion years we would have been burned to pieces or being able to say hello to planet Neptune

i heard about orbit changes here and there, but its just speculation, cause .. how would you measure inches agains a surface which is pulsating and somewhat on fire ?

no fixpoint, no measurement. scratch it

the moon has a few laser reflectors on it left by this and that apollo mission, these measurements suggest that the moon is slowly drifting away a few inches per year. maybe you confuse that ?

checkout apollo laser experiment on the NASA website

Answer 5

Well you kind of heard wrong. Th earth is zipping around the sun the way it has for over 4 billion years. There are slight changes of the orbit/climate that may occur over about 100,00 years or so because of slight influences from other planets, but in general, the orbit is very stable. If you really want to get confused, try here

http://aa.usno.navy.mil/faq/docs/seasons_orbit.html

Answer 6

permit's see, an general of approximately ninety 3 million miles from the earth, and it takes approximately 365.25 days to do the orbit. The circumfrence of a circle, although ours is an elipse, is the diameter situations pi. that could desire to be some thing like approximately 186 million situations 3.14, around 584 million miles to holiday. that could desire to be a pair of million.6 million miles consistent with day, or between sixty six-sixty seven,000 miles consistent with hour. do no longer you experience like we are incredibly whizzing alongside now? the math is properly slightly extra complicated. The solar is moving around the galaxy center, so in an absolute phrases it incredibly is quite confusing to determine if we've been to count type all the aspects, maximum of which at the instant are not some thing we could experience, as though we in simple terms drove around on a curvy street.

Answer 7

Well, you got part of the idea right, and part of it wrong...

The Earth is moving , that is true, but AWAY FROM, not TOWARD the Sun. The Earth's orbit expands about 11.7 miles per year.

Answer 8

1 inch a year due to the gravity of the sun.

Answer 9

those r the global warming guys trying to brainwash u