<p>In short, not much gravitational pull at all, not relative to the distance and relative velocity.</p>

<p>Everything in the observable universe is gravitationally attracted to everything else, at least <a href="https://en.wikipedia.org/wiki/List_of_cosmological_horizons" rel="nofollow noreferrer">within the appropriate horizon</a>.  There should be some objects far enough apart, taking into account cosmic inflation, that gravity can't travel that far over the age of the Universe.  For example the farthest galaxy we can see in one direction and the farthest one we can see in the opposite direction, those two galaxies can't see each other and they likely experience no gravitational pull from each other, but that's not really relevant to your question. </p>

<p><a href="https://en.wikipedia.org/wiki/Great_Attractor" rel="nofollow noreferrer">The Great Attractor</a> is a comparatively small but very dense part of Laniakea, with an estimated mass thousands of times the mass of the Milky Way.   </p>

<p><a href="https://en.wikipedia.org/wiki/Laniakea_Supercluster" rel="nofollow noreferrer">The Laniakea supercluster</a> has a mass of about 100,000 Milky Ways, so any gravitational attraction one supercluster experiences would primarily be from other entire superclusters, and the great attractor would be a small percentage of that.</p>

<p>Superclusters experience gravity from other superclusters but the Universe is very uniform, so that gravitational pull is largely balanced out because it's coming from all sides.   </p>

<p>This touches on one of the modern puzzles in physics, <a href="https://en.wikipedia.org/wiki/Horizon_problem" rel="nofollow noreferrer">called the Horizon problem</a>. This question goes back to the big bang and why the young universe was very close to, but not precisely uniform.    </p>

<p>It might be a fun exercise to calculate the gravitational pull neighboring superclusters have on each other.   I imagine it's pretty negligible compared to the expansion of space between them.</p>

CC BY-SA 4.0
2018-07-14T23:05:14.750Z
Did you read my comments? All superclusters of Laniakea are in one attraction basin. Of course "Great Attractor" is only minor contributor to the attraction, but overall pull is making significant imbalance. Pull from surrounding clusters  also isn't isotropic and whole Laniakea moves in one direction.
Mithoron
CC BY-SA 4.0
2018-07-13T16:10:34.057Z
2018-07-13T16:10:34.057Z
userLTK
<p>The method used to see the movement of galaxy<code>s relative movement to each other they measure the redshift of the galaxy</code>s
<a href="http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/redshf.html" rel="nofollow noreferrer">http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/redshf.html</a></p>

<p>I looked in to you question and found some answers for you in another topic on this site.Seems like the super cluster Laniekea is mowing towards the Great Attractor and accelerating as a whole at different speeds due to there diffrent masses.
 <a href="https://astronomy.stackexchange.com/questions/6288/when-will-the-milky-way-arrive-at-the-great-attractor-and-what-all-happen-the?rq=1">When will the Milky Way &quot;arrive&quot; at the Great Attractor, and what all happen then?</a></p>

CC BY-SA 4.0
2018-07-13T13:57:49.557Z
2018-07-13T13:57:49.557Z
JanErik
<p>I'm not sure, whether there is any other observable super cluster like our local one, Laniakea, and if they do exists, do they also get pulled by the Great Attractor? </p>

<p>I am a little confused about superclusters and The Great Attractor, how they do exists relative to each other and how we can see/know from our galaxy, specifically from the Earth. </p>

CC BY-SA 4.0
2018-07-12T23:28:31.900Z
By definition, they aren't pulled to the Great Attractor. Laniakea is supposed to cover everything in one attraction basin.
Mithoron
CC BY-SA 4.0
2018-07-12T23:35:42.353Z
Or more precisely, they are attracted, by our Attractor, but pull from other sources is stronger.
Mithoron
CC BY-SA 4.0
2018-07-13T10:16:53.577Z
@Mithoron, So do you mean the Great Attractor is part of Laniakea?
Aung Satt
CC BY-SA 4.0
2018-07-13T14:33:26.447Z
Of course, it's "deepest part" of attraction basin.
Mithoron
CC BY-SA 4.0
2018-07-13T15:48:40.550Z
Just to add a link to the above.   It says as much right on top:    https://en.wikipedia.org/wiki/Great_Attractor  We don't have a good idea what the Great Attractor is, because it's blocked by the densest part of the Milky way.  https://en.wikipedia.org/wiki/Great_Attractor
userLTK
<redshift><galaxy-cluster><local-group><apparent-motion>
Do other supercluster like Laniakea also get pulled by the Great Attractor?
Aung Satt
# Do other supercluster like Laniakea also get pulled by the Great Attractor?

(Asked by: username_0 on 2018-07-12)

I'm not sure, whether there is any other observable super cluster like our local one, Laniakea, and if they do exists, do they also get pulled by the Great Attractor?

I am a little confused about superclusters and The Great Attractor, how they do exists relative to each other and how we can see/know from our galaxy, specifically from the Earth.

**Tags:** redshift, galaxy-cluster, local-group, apparent-motion

> **Comments:**
> **username_1**: By definition, they aren't pulled to the Great Attractor. Laniakea is supposed to cover everything in one attraction basin.  
> **username_1**: Or more precisely, they are attracted, by our Attractor, but pull from other sources is stronger.  
> **username_0**: @username_1, So do you mean the Great Attractor is part of Laniakea?  
> **username_1**: Of course, it's "deepest part" of attraction basin.  
> **username_2**: Just to add a link to the above.   It says as much right on top:    https://en.wikipedia.org/wiki/Great_Attractor  We don't have a good idea what the Great Attractor is, because it's blocked by the densest part of the Milky way.  https://en.wikipedia.org/wiki/Great_Attractor  

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## 2 answers

### Answer by username_2 on 2018-07-13. Score: 2 | Accepted answer

In short, not much gravitational pull at all, not relative to the distance and relative velocity.

Everything in the observable universe is gravitationally attracted to everything else, at least [within the appropriate horizon](https://en.wikipedia.org/wiki/List_of_cosmological_horizons). There should be some objects far enough apart, taking into account cosmic inflation, that gravity can't travel that far over the age of the Universe. For example the farthest galaxy we can see in one direction and the farthest one we can see in the opposite direction, those two galaxies can't see each other and they likely experience no gravitational pull from each other, but that's not really relevant to your question.

[The Great Attractor](https://en.wikipedia.org/wiki/Great_Attractor) is a comparatively small but very dense part of Laniakea, with an estimated mass thousands of times the mass of the Milky Way.

[The Laniakea supercluster](https://en.wikipedia.org/wiki/Laniakea_Supercluster) has a mass of about 100,000 Milky Ways, so any gravitational attraction one supercluster experiences would primarily be from other entire superclusters, and the great attractor would be a small percentage of that.

Superclusters experience gravity from other superclusters but the Universe is very uniform, so that gravitational pull is largely balanced out because it's coming from all sides.

This touches on one of the modern puzzles in physics, [called the Horizon problem](https://en.wikipedia.org/wiki/Horizon_problem). This question goes back to the big bang and why the young universe was very close to, but not precisely uniform.

It might be a fun exercise to calculate the gravitational pull neighboring superclusters have on each other. I imagine it's pretty negligible compared to the expansion of space between them.

> **Comments:**
> **username_1**: Did you read my comments? All superclusters of Laniakea are in one attraction basin. Of course "Great Attractor" is only minor contributor to the attraction, but overall pull is making significant imbalance. Pull from surrounding clusters  also isn't isotropic and whole Laniakea moves in one direction.  

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### Answer by username_3 on 2018-07-13. Score: 1

The method used to see the movement of galaxy`s relative movement to each other they measure the redshift of the galaxy`s
<http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/redshf.html>

I looked in to you question and found some answers for you in another topic on this site.Seems like the super cluster Laniekea is mowing towards the Great Attractor and accelerating as a whole at different speeds due to there diffrent masses.
[When will the Milky Way "arrive" at the Great Attractor, and what all happen then?](https://astronomy.stackexchange.com/questions/6288/when-will-the-milky-way-arrive-at-the-great-attractor-and-what-all-happen-the?rq=1)


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