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View Full Version : Elvirgo Clusterello and the Attractions



Palomar
2007-Sep-08, 12:43 PM
No, it's not a 1950's sockhop band. :)

http://www.space.com/imageoftheday/image_of_day_070907.html

Cute, pudgy "little" galaxies.


The Virgo cluster, the nearest large cluster to us, is estimated to lie approximately 50 million miles away, in our Local Supercluster. It may comprise as many as 2000 galaxies. So massive is the Virgo cluster that it attracts our galaxy and other galaxies.

frankuitaalst
2007-Sep-09, 12:16 PM
Quote "approximately 50 million miles away"

I would feel more comfortable if this was 50 millions light years away .

Cougar
2007-Sep-09, 09:07 PM
No, it's not a 1950's sockhop band. :)
http://www.space.com/imageoftheday/image_of_day_070907.html

That's an interesting picture, all right. Those two main galaxies sure seem a lot closer than those much smaller background galaxies. Are all those in Virgo? The main two are apparently not interacting, or they'd both be perturbed, not just the one, which apparently interacted with something else outside the frame... [/just thinkin' out loud...]

Wiki points out....



The cluster is a fairly heterogeneous mixture of spirals and ellipticals. As of 2004, it is believed that the spirals of the cluster are distributed in an oblong prolate filament, approximately 4 times as long as wide, stretching along the line of sight from the Milky Way. The elliptical galaxies are more centrally concentrated than the spiral galaxies.


I suppose it makes it hard to pinpoint a single distance, or even agree on what that means, when you're talking about a cluster of 2,000 galaxies as oddly shaped as the Virgo Cluster. :think: