The amazing universe.

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geochem1st

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You and I have the same concept, with different ways of explaining it. You say no center, I say any point is center. It is virtually the same thing, though seemingly opposite.

Not quite, a center implies boundary conditions. You have to be center relative to something.

If the universe is infinite, no boundary, then the term center is meaningless.
 

GLP4me

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Not quite, a center implies boundary conditions. You have to be center relative to something.

If the universe is infinite, no boundary, then the term center is meaningless.

That's what I meant to say. I guess I didn't word it right, did I Geo??? Or did you get it.
 
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The center is the middle of all that is equal around it. So anywhere in infinity is center.
 

geochem1st

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The center is the middle of all that is equal around it. So anywhere in infinity is center.

center
Dictionary: cen·ter (sĕn'tər)

n.
A point or place that is equally distant from the sides or outer boundaries of something
center: Definition, Synonyms from Answers.com
*******************************

14. center, centre
a point equidistant from the ends of a line or the extremities of a figure
Definition of center - WordReference.com Dictionary

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The term 'center' only makes sense when dealing with boundaries. It is a point that is relative to a boundary. You have to be able to determine the midpoint of line segments (finite length) to determine the midpoint or center. To do that you divide the length, which is a finite number.

You can not divide into 'infinity'. It is an operation that is restricted, such as, dividing by 'zero'. The result has no meaning. Even using transfinite geometries, the idea of 'center' in dealing with infinite sets has no real meaning.

EDIT:
Infinity is not a 'number'. It represents a collection or set of numbers or values, that have an unknown very large quantity that is not finite. Example:

To simplify, consider the number line,

-+------+-----+-----+----->
0...........1.......2.......3

An example of infinity would be the set of all fractions between 1 and 2 (1/2, 1/4, 1/8 1/16, etc..)
What is the midpoint (center) of that set?

The midpoint of a line is given by the formula - pt. A + pt. B divided by 2.
You cannot divide infinity in 2 to get the answer. The answer is only meaningful if you use the boundary points 1 and 2.
 

Phil47uk

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I tracked Jupiter until it got obscured by the Sun's aurora. And I am tracking Venus, now, but where is Saturn these days? (in relation to Orion or Venus, let's say)

Norbe.
It should be at around 100 -110 degrees South South West and at an angle of about 17 degrees at approx 8.30 pm GMT.
Saw it again tonight through a higher mag.. Fantastic..

If you look at the moon at around 8.30 pm, which is fairly low and basically turn 180 degrees and look in the opposite direction, you'll be in the ballpark. You'll see two brightish objects fairly low on the horizon, as I said about 17 degrees. Saturn is the one on your right.
 

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