The document contains information about the composition of the Sun with its different layers, the life cycle of stars from medium stars to black holes over millions of years, a scale representation of some planets and stars in the solar system, an explanation of what a planisphere is as a map to see visible stars, a brief mention of horoscopes, and a note about including photos of stars.

2. The composition of the Sun.
Layers:
Nucleus
Radiant Zone
Convactive Zone
Photosphere
Cromosphere
Crown
Solar Wind

3. The stars’ life
Medium star
Red Giant
Planetary Nebula
white dwarf
10.000 Millions of years
Nebula
neutron star
massive star
red supergiant
10-20 Millions of years
Supernova
Black hole

4. The planets and some stars to
scale
•
This are some stars and the planets of the soar system placed in
order:

5. What’s a planisphere?
• A planisphere is a “map” in which we represent the
stars. In some cases it’s divided into 4 seasons.In
other’s, we divide the into 2 parts: stars visible in the
northern hemisphere and stars visible in the southern
hemisphere. In it we can see when some constellations
are visible, what stars we can see a specifc day and
hour…It consists of two papers: in one we
represent the stars and in the other we have
the days and hours in which we want to see
stars, then the planisphere shows us a part of
the paper in which stars are represented. This
will be the stars we will see that day.

6. The Horoscope

8. And finally…Some photos of
stars.