Local Group Center: Direction of Center

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Discussion Overview

The discussion revolves around the direction of the center of the Local Group of galaxies, focusing on the spatial relationship between Andromeda and the Milky Way. Participants explore the implications of mass distribution within the Local Group.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant suggests that the center of the Local Group would be roughly located between Andromeda and the Milky Way, as these two galaxies are believed to contain the majority of the group's mass.
  • Another participant seeks clarification on the specific location of this center in the sky, asking for more detailed positional information.
  • A further reply indicates that the center would align with the Andromeda galaxy as viewed from the Milky Way, providing a reference to its position in relation to constellations.

Areas of Agreement / Disagreement

Participants express differing levels of certainty regarding the exact location of the center, with some proposing a general area while others seek more precise astronomical context. No consensus is reached on the definitive location.

Contextual Notes

The discussion lacks specific measurements or calculations that could clarify the proposed positions, and there may be assumptions about mass distribution that are not explicitly stated.

Pjpic
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In which direction lies the center of the local group?
 
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I'd imagine it would be roughly in between Andromeda and the Milky Way, since I believe those two galaxies hold the vast majority of mass in the local group.
 
Jack21222 said:
I'd imagine it would be roughly in between Andromeda and the Milky Way,


Where'd that be (in the sky)?
 
Pjpic said:
Jack21222 said:
I'd imagine it would be roughly in between Andromeda and the Milky Way,


Where'd that be (in the sky)?

The centre would be directly in line with the Andromeda galaxy as seen from here in the Milky Way.

Andromeda is on the neck of the constellation Pegasus, towards Cassiopeia.
http://upload.wikimedia.org/wikipedia/en/5/59/Andromeda_constellation_map.png
 
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