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Scientists find a galaxy joining ours
International Herald Tribune/ NYT ^ | 10 January 2006 | Warren E. Leary

Posted on 01/10/2006 11:03:37 PM PST by Lorianne

WASHINGTON A previously unrecognized galaxy appears to be merging with the Milky Way, bringing hundreds of thousands of stars into our home galaxy that scientists had not noticed until now, astronomers said.

A survey of the northern sky has detected a huge, but diffuse structure within the confines of the Milky Way that does not seem to fit in with other parts of the galaxy that contains our solar system, scientists said Monday.

Robert Lupton of Princeton University told a meeting of the American Astronomical Society that the large but faint collection of stars rises almost perpendicular to the flat, spiral disk of the Milky Way. The most likely interpretation of the structure, the astronomer said, is that it is a dwarf galaxy that has been merging with our galaxy.

The dwarf galaxy lies in the direction of the constellation Virgo at an estimated distance of 30,000 light-years from Earth, researchers reported.

While some of the stars of the companion galaxy may have been observed with telescopes for centuries, they said, no one realized they belonged to another body because they are so close and commingled with Milky Way stars.

The Milky Way is a flat, pinwheel galaxy measuring more than 100,000 light-years across and containing an estimated 200 billion stars. A light-year is the distance light travels in a vacuum in a year's time, about 9.5 billion kilometers, or 5.9 trillion miles.

(Excerpt) Read more at iht.com ...


TOPICS: News/Current Events
KEYWORDS: darksky
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To: Lorianne

I thought I heard a big noise . . . .


21 posted on 01/11/2006 12:38:19 AM PST by Larry Lucido
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To: Larry Lucido
Image hosted by Photobucket.com
22 posted on 01/11/2006 1:24:24 AM PST by MillerCreek
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To: anyone

I heard that John Bolton has already proposed erecting a 700 trillion light-year anti-matter wall to prevent stars from entering our galaxy illegally.

Kofi Anonymush has appointed his son (no relation) to start a "Food for Novae" program.

Bono, Clinton and Belafonte are going to take a shuttle out to greet our new visitors......


23 posted on 01/11/2006 4:22:56 AM PST by jbp1
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To: Lorianne
The dwarf galaxy lies in the direction of the constellation Virgo

A virgin birth?

24 posted on 01/11/2006 5:22:07 AM PST by giotto
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To: D-fendr
Nemesis.

Where do I spend my 10 points?

25 posted on 01/11/2006 6:46:50 AM PST by Jabba the Nutt (Jabba the Hutt's bigger, meaner, uglier brother.)
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To: D-fendr

Also spelled Mohican, as in the last of the........


26 posted on 01/11/2006 6:50:03 AM PST by AmericanDave (More COWBELL....................)
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To: Lorianne

There goes the neighborhood.


27 posted on 01/11/2006 6:50:52 AM PST by Semper Paratus
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To: TomGuy

commingled?? Planned Parenthood is planning a response.


28 posted on 01/11/2006 6:59:09 AM PST by OrioleFan (Republicans believe every day is July 4th, DemocRATs believe every day is April 15th. - Reagan)
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To: A CA Guy
There goes the neighborhood!
---
That was my thought, too. Congratulations, you beat me to it.
29 posted on 01/11/2006 7:58:54 AM PST by Cheburashka
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To: D-fendr
Sorry... That was just a bit of border state humor.

But seriously...

Reading at that link you provided makes me wonder: At what point does a group of stars near our galaxy stop being a globular cluster and start to be a dwarf galaxy? Perhaps someone here can answer this. A dwarf spheroidal galaxy doesn't sound very different than a globular cluster.
30 posted on 01/11/2006 8:00:48 AM PST by Redcloak ("If you can't say something nice about someone, then you must be talking about Hillary Clinton.")
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To: D-fendr
Ten points for the first person to name the galaxy currently "colliding" with ours.
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Since its colliding with the Milky Way, I nominate "Snickers".
31 posted on 01/11/2006 8:01:07 AM PST by Cheburashka
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To: farlander
Save the planet! We're dooooomed... dooomed, I tell ya!

Maybe if the whole planet jogged east at the same time we could increase planetary spin and clear us out of the path of this new galaxy?

32 posted on 01/11/2006 1:03:08 PM PST by A CA Guy (God Bless America, God bless and keep safe our fighting men and women.)
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