Stars, Constellations and Galaxies

© Elena, Juan y Liz

Stars, Constellations and Galaxies

© Elena, Juan y Liz

STARS are enormous spheres of gas where nuclear reactions produce enormous amounts of light and

heat.

STARS are

classified by

Colour

Blue Yellow Orange Red White

Hottest and youngest Coolest and oldest

Size White dwarfs Red giants

Smallest Biggest

Luminosity

Depends on colour, size and DISTANCE TO THE EARTH

Stars, Constellations and Galaxies

© Elena, Juan y Liz

The second brightest star in the sky is

SIRIUS.It is 8.6 light years

from the Earth

The brightest star in the sky is the SUN.

It is a yellow and average star.

It is the closest star to the Earth

Stars, Constellations and Galaxies

© Elena, Juan y Liz

CONSTELLATIONS are groups of stars easily identified from the

Earth. They are named because of their shape

Some examples:

Stars, Constellations and Galaxies

© Elena, Juan y Liz

GALAXIES are enormous systems of stars, dust and gas that is held together by the force of gravity

GALAXIES are

divided into

Spiral

Elliptical

Irregular

Stars, Constellations and Galaxies

© Elena, Juan y Liz

Our SOLAR SYSTEM is part of a spiral galaxy called

MILKY WAY

Stars, Constellations and Galaxies

© Elena, Juan y Liz