Milky Way Galaxy

[harry]

Hello FieryIce

How did they do that?

[zeilouz]

Its very hard to understand on the lunar eclipse chart..>.<

But it was very interesting..

[FieryIce]

Hello FieryIce

How did they do that?

You're asking me!?

[harry]

Hello FieryIce

I'm talking to you.,,,,,,,,,,,,,,,,which movie,,,,,,,,,,was this made famous.

"You talking to me"

[Nereid]

Many scientist say that our solar system is in the milky way galaxy,but,in some certain places,some scientist might say that our solar system is from a dwarf galaxy,it is ur opinion harry but it should always be right,isnt it?

zeilouz, do you happen to have a reference (such as a link to a website) where "some scientist might say that our solar system is from a dwarf galaxy"?

I am not aware of any such, and would be quite interested to read any papers such scientists had written!

We have our own thoughts,some thoughts are correct n some are not,

But,regardless to say,many scientist believe that we are from the milky way galaxy,the existence of a dwarf galaxy is not yet to be known,maybe should wait nasa to prove it..~.~

If you live in the southern hemisphere zeilouz, or far enough south in the northern one, you can see two such dwarf galaxies for yourself, with nothing more than your own two eyes (provided the night sky is clear and dark, and it is the right time of year).

They are called the Magellanic Clouds, though of course people who lived in Australia, South America, and (above all) the southern part of Africa, have seen these tens of thousands of years before Magellan first did.

With a modest telescope, you can also see several other dwarf galaxies - the two bright companions of the Andromeda galaxy, for example (though you have to be in the northern hemisphere for those).

[harry]

Hello Neried

I like it when you help people.

It makes the place feel like home.

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I am from the land of ozzzzzzzzzzz and all the stars down under look inside out.

[harry]

Hello All

The Local group of galaxies

From 500,000 Gyrs looking in.

http://www.atlasoftheuniverse.com/sattelit.html

If you have not seen this link before, its not so bad.

[harry]

Hello All

I forgot, some one asked for this link before.

http://antwrp.gsfc.nasa.gov/apod/ap031117.html

What is the closest galaxy to the Milky Way? The new answer to this old question is the Canis Major dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. Recent measurements indicate that the Canis Major dwarf is only 42,000 light years from the Galactic center, about three quarters of the distance to the Sagittarius dwarf and a quarter of the distance to the LMC

APOD: 2001 August 4 - Neighboring Galaxy: The Large Magellanic Cloud
http://antwrp.gsfc.nasa.gov/apod/ap010804.html

[nikki]

Here is a nice question:
"Why is impossible to see Large Magellan Cloud in zenith?"

[harry]

Hello Nikki

Smile,,,,,,,,,,,,,,,,,,,Maybe your too far away.

[nikki]

I'm serious!
Why you can't see with naked eye LMC straight over your head- at zenith?
It is nice classical astronomical question.

[harry]

Hello All

For those who want Zenith explained
http://en.wikipedia.org/wiki/Zenith

LMC
http://en.wikipedia.org/wiki/Large_Magellanic_Cloud

It is visible as a faint 'cloud' in the night sky of the southern hemisphere, straddling the border between the constellations of Dorado and Mensa.

So! if you are standing at some place on the earth and you looked straight up you will not see LMC.

The Large Magellanic Cloud, LMC
http://seds.org/messier/xtra/ngc/lmc.html

The Large Magellanic Cloud, together with its apparent neighbor and relative, the Small Magellanic Cloud, are conspicuous objects in the southern hemisphere, looking like separated pieces of the Milky Way for the naked eye. They were certainly known since the earliest times by the ancient southerners, but these people produced little documents which are still preserved. The first preserved mention of the Large Magellanic Cloud was by Persian astronomer Al Sufi, who in 964 A.D., in his Book of Fixed Stars calls it Al Bakr, the White Ox, of the southern Arabs, and points out that while invisible from Northern Arabia and Baghdad, this object is visible from the Strait of Babd al Mandab, at 12deg 15' Northern latitude. Next, it was probably mentioned by Amerigo Vespucci in a letter written during his third voyage about 1503-4, as one of "three Canopes, two bright and one obscure;" Amerigo's bright "Canopes" are thought to be the Magellanic Clouds, while the obscure one is probably the Coalsack dark nebula. Eventually, it was Magellan and his discovery expedition who brought them to our knowledge in 1519.

Expedition to Australia the land of ozzzzzzzzzzzzz down under. Being down under he could see that LMC quite easily.

[nikki]

You would see LMC in zenith at geographical latitude aprox. 70 deg south!

[harry]

Hello Nikki

Smile,,,,,,,,,,,,,,your dead right.

[nikki]

Hallo Harry!
I know that, but the question still remains.

[nikki]

With my question about LMC I went off the topic.
So here is project, which is about dynamic of our Galaxy- RAVE:
http://www.rave-survey.aip.de/rave/

[harry]

Hello Nikki

So tell me,,,,,,,,,,,,,,,,,What am I looking at?

I'm reading the link

[nikki]

Hello Harry!
LMC has astronomical latitude b= aprox. -85 deg, so it is near south ecliptical pole, which is always 90 deg from the Sun. So when LMC is at zenith, Sun is near horizon, the sky is bright and it is impossible to see LMC!
QED
Your Nikolaj

[harry]

Hello Nikki

Here in the land of ozzzzzzzzzzz,,,,,,,,,,,,,Sydney

We just look up and see LMC.

[Scienceguy]

More to the story?

Turns out that Harry got a hold of the sensationalized plagiarized version of an inventor's findings and discoveries tying the whole matter together as published for peer review directly to the net in blog form:


Referencing statement from the "Real Site":

http://curezone.com/blogs/fm.asp?i=985423

"EDITOR'S NOTE: There was an article on a site called Viewzone that lifted quite a bit of this content and then mixed/ matched
quotes here with those of scientists in a "sensationalism release" without the proper substantiation. This may have resulted in an undue
prejudicial treatment of the topics by some, who seem only too eager to dismiss the potentially timely breakthroughs offered here without proper and due consideration for the advancement of science. Given the fact that even the mainstream discoveries such as discovering that we have been wrong since Copernicus about which way we were even going in space until just months ago, makes it unfair to scientists to ask them to make snap statements on any of these topics until they have updated and equipped themselves on all the new data. Therefore, any premature pronouncements implicating this work in with any Viewzone article inaccuracies may simply be an unwitting exercise in guilt by association and unfortunately throwing the baby out with the bathwater in a blinded by circumstance resistance to progress. Because some across the globe may have a timely, important use for the information, we choose not to withhold the information from humanity, because of the scientific importance and obvious potential weight of the implications presented globally."

[harry]

Hello Scienceguy

Thank you for the link

http://curezone.com/blogs/fm.asp?i=985423

I will read it soon

Merry Xmas and a Happy New Year to all

[harry]

G'day

http://www.astronomy.com/asy/default.aspx?c=a&id=6995

May 27, 2008
The Milky Way Galaxy has lost weight, a lot of weight. About a trillion Suns' worth.

It wasn't a galactic diet that accounted for the recent slimming, but a more accurate scale. This weighty discovery from the Sloan Digital Sky Survey (SDSS-II) has broad implications for our understanding of the Milky Way.

"The galaxy is slimmer than we thought," says Xiangxiang Xue of the National Astronomical Observatories of China, who led an international team of researchers. "That means it has less dark matter than previously believed, but also that it was more efficient in converting its original supply of hydrogen and helium into stars." Xue is presently pursuing a doctoral thesis at the Max Planck Institute for Astronomy (MPIA) in Heidelberg, Germany.

[harry]

G'day

Some links to the centre of the Milky Way

http://apod.nasa.gov/apod/ap990128.html
This one is great

http://apod.nasa.gov/apod/ap070114.html
http://cfa-www.harvard.edu/~reid/sgra.html
http://www.mpe.mpg.de/ir/GC/index.php
http://www.astro.ucla.edu/~ghezgroup/gc/

[makc]

Some links to the centre of the Milky Way

there are quite a few apod links on wiki "galactic center" page.

[harry]

G'day from the land of ozzzzzz

Thank you makC
for the link
Galactic Center
http://en.wikipedia.org/wiki/Galactic_center

I thought I had those links.

Darn

Nice images

A Galactic Cloud of Antimatter
http://antwrp.gsfc.nasa.gov/apod/ap970501.html

Journey to the Center of the Galaxy
http://antwrp.gsfc.nasa.gov/apod/ap970121.html

Sgr A*: Fast Stars Near the Galactic Center
http://antwrp.gsfc.nasa.gov/apod/ap001220.html

At the Center of the Milky Way
http://antwrp.gsfc.nasa.gov/apod/ap051023.html

Galactic Centre Starscape
http://antwrp.gsfc.nasa.gov/apod/ap000629.html

Dramatic Increase in Supernova Explosions Looms
http://www.space.com/scienceastronomy/a ... 610-1.html

ALBUQUERQUE, N.M. - The center of our Milky Way Galaxy is inching toward an era of intense fireworks when stars will be born 100 times more frequently than today and many will die quick, explosive deaths, according to new research.

A huge and dense ring of interstellar gas is collecting near the galactic center and approaching a density that will, in about 200 million years, generate a burst of star formation that could transform the very appearance of our galaxy as seen from afar.

The dark heart of the Milky Way
http://www.einstein-online.info/en/spot ... index.html

In the case of the central black hole in the Milky Way galaxy, astronomers have followed the motion of several stars in the centre of the galactic core for years. The following animation is based on observations made by researchers from the Max-Planck-Institute for extraterrestrial physics in the course of six years, using the New Technology Telescope of the European Southern Observatory.

This is a great little movie

The Galactic Centre
Max-Planck-Institut für extraterrestrische Physik
http://www.mpe.mpg.de/ir/GC/index.php

Wow! the amount of info.

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Again thank you MackC for the above.