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Galaxies have a supermassive black hole at their centre.


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Galaxies.
Galaxies supermassive black hole.

Stars and a galactic cluster - Nov 22 - 28, 2004.

For those of you who like observing challenges, this week will provide many interesting opportunities to view occultations of bright stars by asteroids as well as three observable comets. We will explore lunar features for both binoculars and Telescopes and look into "The Eye of the Bull". Although the Moon goes full this week, we can still have fun by learning to observe satellite passes and even chase the ISS! We will begin an in-depth look at the constellation of Cassiopeia by viewing and discussing some of its bright double stars and a galactic cluster. Just as predictable as the morning planets, there's always something fun to do, a bit of history and things to learn. So open your eyes...

Because here's what's up!

Supermassive Black holes Early On.

Astronomers now believe that all large Galaxies have a supermassive black hole at their centre, but it was believed that these black holes formed after the galaxy. The evidence is starting to point the other way, that these black holes formed soon after the Big Bang, and then the Galaxies built up around them. New observations from the Chandra X-Ray Observatory show a distant quasar that formed less than a billion years after the Big Bang, and was already producing the same amount of energy as twenty trillion Suns.

Rhea Shows Off a Big Impact.

Cassini took this image of Rhea, Saturn's second largest moon, on October 24, 2004 when it was about 1.7 million km (1 million miles) away. The photo clearly shows a bright bright impact crater near its eastern limb. Cassini will get another view of Rhea in January 2005 - but with 10 times better resolution - just after it releases the Huygens probe which will land on Titan.

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