quick astronomy question

Post by **Tsakali** » Sat Aug 13, 2005 7:32 pm

k so a galaxy is a group of solar systems. So what about galaxies, do they belong to a bigger group of interstelar entity/ies?

Post by **tnf** » Sat Aug 13, 2005 7:42 pm

A galaxy is a group of stars, not necessarily solar systems.

There are clusters of galaxies - for example the Milky way belongs to a cluster called teh local group.

The nearest cluster of galaxies to our cluster is the Virgo cluster.
There are also superclusters...

Post by **Tsakali** » Sat Aug 13, 2005 7:45 pm

cluster of galaxy clusters?

now do these "steps" (read: stars, galaxies,clusters, supercluster) etc." resemble one another on some basic level of formation ?

Post by **tnf** » Sat Aug 13, 2005 8:09 pm

things being held 'together' by gravity

in the most basic sense

Post by **[xeno]Julios** » Sat Aug 13, 2005 9:10 pm

Tsakali wrote:
now do these "steps" (read: stars, galaxies,clusters, supercluster) etc." resemble one another on some basic level of formation ?

there may indeed be something fractal in here, but there are probably also higher level features of organization that aren't found in lower levels.

I think at the really high levels, you tend to get sheets of matter, whereas in the lower levels, they're more globular or something. (not sure about this though)

Post by **dzjepp** » Sat Aug 13, 2005 9:34 pm

lol you're just trying to sound smart

Post by **GONNAFISTYA** » Sat Aug 13, 2005 9:50 pm

In addition to the Virgo cluster we are part of the Virgo supercluster.

Here's a vague map of the Virgo Supercluster and it's "parts".

Here's a pict taken from this site which lays out the "local group" of superclusters:

It's a big neighborhood...and God only loves Amercia.

Post by **GONNAFISTYA** » Sat Aug 13, 2005 10:06 pm

tnf wrote:things being held 'together' by gravity

in the most basic sense

Here's more info on the dynamics of a cluster.

And here's a cool read about it as well.

Post by **[xeno]Julios** » Sat Aug 13, 2005 10:07 pm

dzjepp wrote:lol you're just trying to sound smart

pfft. Go learn about fractals and you'll see why my reply is smart!

Post by **mik0rs** » Sat Aug 13, 2005 11:58 pm

GONNAFISTYA wrote:In addition to the Virgo cluster we are part of the Virgo supercluster.

Here's a vague map of the Virgo Supercluster and it's "parts".

Here's a pict taken from this site which lays out the "local group" of superclusters:

It's a big neighborhood...and God only loves Amercia.

Being part of a supercluster's okay, if that's all you can afford.

Post by **Tsakali** » Sun Aug 14, 2005 7:17 pm

we live in the brojects of the universe :icon25:

Post by **feedback** » Sun Aug 14, 2005 7:36 pm

mik0rs wrote: Being part of a supercluster's okay, if that's all you can afford.

hahaha