The Fascinating Movement of Andromeda Galaxy: Impact on Mass and Time?

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    Andromeda Galaxy
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Discussion Overview

The discussion revolves around the movement of the Andromeda galaxy towards the Milky Way at a speed of 200,000 miles per hour, specifically exploring its implications on mass and time as perceived from our reference frame. The inquiry is conceptual, focusing on relativistic effects without delving into mathematical explanations.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant notes that Andromeda's movement towards the Milky Way may imply changes in its mass and time perception, questioning whether it has increased mass and slowed time relative to our galaxy.
  • Another participant suggests that, from our reference frame, Andromeda's clocks would be moving slower by a small fraction, indicating a relativistic effect.
  • A later reply reiterates the initial question about the implications of Andromeda's speed on mass and time, providing a specific numerical estimate of the time dilation effect, although it remains unclear how this relates to mass.

Areas of Agreement / Disagreement

Participants express varying views on the implications of Andromeda's speed on mass and time, with no consensus reached on whether there is an increase in mass or a definitive slowing of time.

Contextual Notes

The discussion includes assumptions about relativistic effects and the reference frame used for measurements, but these assumptions are not fully explored or resolved.

Deepak Kapur
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I read that Andromeda galaxy is moving towards our galaxy at a speed of 200,000 miles per hour. Does it mean that Andromeda galaxy has increased mass and slowed time in comparison to us (or the opposite is true or no effect on its mass or time is there)?

No mathematical answers please (I am just a curious observer-neither a mathematician nor a physicist)
 
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Yes though the difference is extrordinarily small.
 
As measured from OUR reference frame...Andromeda's clocks should be moving slower by a small fraction.
 
Deepak Kapur said:
I read that Andromeda galaxy is moving towards our galaxy at a speed of 200,000 miles per hour. Does it mean that Andromeda galaxy has increased mass and slowed time in comparison to us (or the opposite is true or no effect on its mass or time is there)?

No mathematical answers please (I am just a curious observer-neither a mathematician nor a physicist)

The difference is about [tex]1/2*(1/3600)^2=0.5*10^{-7}[/tex]
 

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