LIFE OF THE STARSGALAXIES

BY: Malena Brun, Milagros Molinari, Denisse Pecuch Tucker, Martina Pagni, Juana Saravia, Sofía Rendo and Josefina Fernandez.

INDEX

STARS TEMPERATURE AND COLORS

HOW STARS BORN ?

HOW AND WHY STARS DIE ?

HOW MANY YEARS STARS LIVE ?

THE STARS MOVE ?

WHATS A GALAXIE ?

OUR GALAXYE

TIPES OF GALAXIES

SOURCES

PICTURES

THE END

STARS TEMPERATURE AND COLORS

The apperience of stars are acording to their temperature: Hot stars are Blue, Medium stars are yellow and cooler stars are red giants. When Red Giants die completley they turn to black holes and sometimesthey leave little stars called white drwafts.

HOW STARS ARE BORN

They had found dark clouds called globules, a globule grows as it’s gravity pulls sorounding matter into itself. As the globule keeps getting larger and larger, it keeps up until it begins to glow red in time in the core zooms up to ten milloon kelvins. When that happens the core becomes hot enough.That is called a Prootostar. And thats how a star is born.

HOW AND WHY STARS DIE?

Stars die when their supply of gass runs out, causing to get their light run off. “ Little stars” fade away when they die but a big star begins to die it starts to go cooler, red and bigger. That is called a Red Giant . Eventually a Red Giant pushes its outer layers into space. All is left is a tiny star known as a white drwaft. A white dwarft is very dense and heavy for their size. Their weight gives ten a hube amount of weght. They can be very little but weght very, very much.

HOW MANY YEARS STARS LIVE

THE STARS MOVE

The stars, the same that the sun, they move even thowsome do it much quicker that sun king. Even thow, they are far away that their movement is so little for to be seen, exccept by the carefull observations, with a lot of years of separation. During all our life and a simple view, is almost impssible detect some change. One way of to observe the movementof the stars is teking photos in times separated and measuring the light change in the position of the stars.

THE LIFE OF THE STARS

What's a galaxy ?

Galaxies are sprawling space systems composed of dust, gas, and countless stars. The number of galaxies cannot be counted—the observable universe alone may contain 100 billion. Some of these distant systems are similar to our own Milky Way galaxy, while others are quite different.

Galaxies with less than a billion stars are considered "small galaxies." In our own galaxy, the sun is just one of about 100 billion stars.

OUR GALAXYE

The milky way is a galaxy that belongs to our solar system, where is the planet earth . Is seen as a bright silver band that crosses the space. This composed by a nucleus, the flattened, which arising numerous arms in spiral, one big number of stars and all type of interstellral matter, like gas and powder. Measured about 100.000 years of light.

TIPES OF GALAXIES

HOW MANY GALAXIES ARE IN TOTAL

SOURCES

PICTURES

THE END

THAK YOU FOR LISENING AND WACHING .