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Saint
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Can someone tell me, how fast is our solar system moving in space relative to a static coordinate system in space?
Originally posted by russ_watters
100,000,000,000,000,000,000,000 mph with regard to the Russ Universal Coordinate System (RUCS)
Um, if you didn't get the sarcasm, based on Einstein's relativity, there is no static coordinate system in space.
Yes, you can find a speed for the solar system based with respect to any object you want. But most would be arbitrary and/or meaningless. meteor's example of using the center of the galaxy is about the best we can do. There is nothing further away that makes sense to use as a center point.Originally posted by Saint
however, it is moving right ?
movement is defined by speed and acceleration,
if no static coordinate, what about Relative coordinate?
Originally posted by thermonuclear
In Einstein’s relativity there is no claim that a static coordinate system does not exist, since every coordinate system can be defined to be static with respect to some other. The point is, whether it exists a coordinate system which can be considered as ‘static’ with respecto the observable universe. From the point of view of Einsteins relativity principle, such a coordinate system would be as arbitrary as any other, but from the point of view of the question placed here it would be surely the best one. This coordinate system turns out to be the CMB (Cosmic Microwave Backgound). If one takes enogh amount of matter, it’s center of mass will in rest relative to the CMB. This has already been proven in studies after Lauer and Postman in 1994. The velocity of the solar system can be derived from the dipolar anysotropy of the CMB and is about 600 km/s in the direction of the geat attactor, a colossal matter structure far behind the milky way.
Regards.
Originally posted by thermonuclear
May be I misunderstood both posts after mine, but I think I've to disagree, if you believe that the possibility of defining the CMB as a reference frame in rest to the observable universe, means that the relativity principle has to be revised.
The Earth travels around the Sun at an average speed of about 67,000 miles per hour.
The Earth takes approximately 365 days, or one year, to complete one orbit around the Sun.
Yes, the Earth's orbital speed varies slightly due to factors such as gravitational pull from other planets and the shape of the Earth's orbit.
The Earth's speed in its orbit has a small effect on the length of a day, but it is primarily determined by the Earth's rotation on its axis.
The Earth's orbital speed is relatively fast compared to other planets in our solar system. For example, Mercury has the fastest orbital speed, while Neptune has the slowest.