Age Wave Implications US Coins US Coin Collectors

Star Ngc

Thanks for Visiting. We Have Some Amazing Star Ngc Product Information For You, So Please Have a Look Around!

More Great Information on Star Ngc:

Facts About The Hubble Telescope by Kozen Huseyin

The Hubble Space Telescope or HST is a astronomy telescope which has captivated mans imagination of the heavens. The beauty of the universe has come into our lives thanks to the awesome pictures from the Edwin Hubble Telescope. Learn more about Hubble and learn the key Edwin Hubble Telescope facts in this article.

::: Why Is The Edwin Hubble Telescope Called Hubble? :::
This is a question that many people have, and want to know why it is called the Edwin Hubble Telescope. Well the Hubble name is not a scientific term! Though it is attributed with someone import in the field of science. And that is Edwin Hubble.

Edwin Hubble an American astronomer was a doctor who confirmed that the universe is indeed expanding. Edwin Hubble who was born 1889 and lived to 1953, is an important part of what has become the big bang theory. The big bang theory being that the universe started with literally a big bang (13.7 billion years ago), and expanded to what we have today.

::: Key Dates For The Edwin Hubble Telescope :::
The Edwin Hubble Telescope was launched on 24 April 1990. The cost was $1.5 billion US dollars, and required the help of hundreds of people to make it so.

Having launched the Edwin Hubble Telescope on the 24 of April 1990, the Edwin Hubble Telescope was deployed the next day on April 25 1990. The designated amount of time for the mission was 20 years; which makes the Edwin Hubble Telescope to come to decommissioning about the year 2010.

The Edwin Hubble Telescope also has had some important servicing missions. Servicing mission 1 began on December 1993. The second servicing mission - servicing mission 2 began on February 1997. The third servicing mission - called Servicing mission 3A, began on December 1999. And the last servicing mission for the Edwin Hubble Telescope was on February 2002, and was called Servicing mission 3B.

::: The Dimensions Of The Edwin Hubble Telescope :::
The Edwin Hubble Telescope is quite a large instrument. With a length of 43.5 feet, and a diameter of 14 feet, it is near to the size of a school bus! The Edwin Hubble Telescope weighs 11,110 kg. Even though the Edwin Hubble Telescope has a weight of 11,110 kg, in space, it is light as a feather.

::: Some More Amazing Facts About The Edwin Hubble Telescope :::
The Edwin Hubble Telescope moves at a speed of 5 miles per second, around the Earth! It only takes the Edwin Hubble Telescope 97 minutes to make 1 revolution around the Earth. And the Edwin Hubble Telescope has a speed of 17,500 mph! Nothing on land and sea can approach those speeds, currently that we know of.

The Edwin Hubble Telescope can look at everything, within its limitations, but it can not view the Sun and Mercury.

The first image that the Edwin Hubble Telescope took a picture of, was a star cluster. On the 20th of May 1990, less than a month of being deployed, the Edwin Hubble Telescope took a picture of Star Cluster NGC 3532.

The pictures from the Edwin Hubble Telescope are simply amazing, and show us parts of the universe which would be impossible to visit in today's world! Looking at the Edwin Hubble Telescope facts, we see many great things, this astronomy telescope has given us.

Want a discount telescope and make big savings on your first telescope? See www.buytelescope.co.uk

Article Source: http://www.earticlesonline.com/Article/Facts-About-The-Hubble-Telescope/281158

Is the core of the white dwarf star @ NGC 2440 1 trillion degree's Fahrenheit?

I was wondering this because if the surface of our sun is 10,000 F and the core being 27,000,000 wouldn;t that make the core of the white dwarf 970,759, 620 based on its surface temperature being about 359,540.6° Fahrenheit? I was using the relative difference between the surface of our sun and core to get the core of the dwarfs temp's with its surface temp.

A white dwarf is the core remnant of a star.

Your approach does not work because the Sun and a dwarf do not work the same and do not have the same layers.

The Sun produces energy at the core and this energy travels outward. That is why the core is so much more hotter than the "surface". There are convection layers between the outer core and the surface, to carry the energy.

A dwarf star does not produce energy at the centre. The whole star is the core of an older star that has gotten rid of his other layers. When our Sun gets rid of its outer layers (during and around the red giant phase), it will be left with only 40% of its original mass, in the form of it core. The convection layers (with a high temperature gradient) will be gone.

It will continue to emit light, due to the accumulated heat. The centre of the core will still be in the millions of degrees for a while, and it will cool down with time. The "surface" of the dwarf is originally hotter than the present surface of the Sun, simply because the new surface will be the surface of the core.

There will be a lot less difference between the "surface" and the centre of the dwarf, as there is between the surface and the core of our present Sun.