Stars, constellations and galaxies

1. Stars, Constellations and Galaxies© Elena, Juan y Liz

2. 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
LuminosityDepends on colour, size and DISTANCE TO THE EARTH

3. 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

4. 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:

5. 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

6. Stars, Constellations and Galaxies© Elena, Juan y Liz
Our SOLAR SYSTEM is part of a spiral galaxy called
MILKY WAY

7. Stars, Constellations and Galaxies© Elena, Juan y Liz