Instruments

• Making helioscopes with four sticks.
• Latitude Gnomon and Quadrant for the Whole Year.
• Building simple sundials.
• The pyrenean shepherd's dials.
• From the armillary sphere to the astrolabe.
• Making your own sky disk.
• Telescope in the pocket.

Models

• Solar Motion Demonstrator.
• Sunrise and sunset position change.
• The Sun above and below the local horizon.
• The Sun and its daily and annual paths.
• Teaching the origin of seasons.
• Path of the North pole.

Observation

• Let us observe the daily path of the Sun.
• Let us measure the excentricity of the terrestrial orbit.
• Observations with a Pinhole Camera.
• Measuring the diameter of the Sun.
• Studies on the Shadow of an Obelisk Used as Horizontal Sundial.
• Where Are You? Locating by the Sun.
• Determining longitude and latitude.
• Observation of variable stars.
• Working before observations.
• Light pollution, an introduction to astronomy/environmental education.

Solar System

• The orbit of Venus.
• Galileo and the phases of Venus.
• Kepler Laws. Experiments.
• Determination of Jupiter's mass.
• Comets: very special visitors.
• Second, metre and speed of light. Historical and experimental approach.
• From the Galilean Solar System to the detection of new minor bodies.
• Roemer and the velocity of light.
• Doppler effect and Saturn spectrum.

Earth and Moon

• Didactical activities about tides
• Moon, phases and eclipses.
• Moon orbit.
• Solar eclipses : a "scale model".
• Solar eclipses : luminosity, temperature, area covered...
• Why are the eclipses dancing through the calendar?
• Aristarcho's proportion.
• The shape of the Earth and the sky.

Sun

• The Sun: from Galileo's work until today.
• Observing sunset.
• Study of the Sun rotation. Spotting and movements.
• Sunspots and the rotation of the Sun.
• Luminosity and temperature of the Sun.
• Photographing the Sun.
• Aurora borealis.
• About the measure of time.
• Spectroscopy for the school.
• Studying the Sun and stars spectra.
• Sunlight spectra.
• Model of the Zodiac-Earth-Sun system.
• Precession of equinoxes.

Constellations

• An estimate of the number of stars visible to photographs.
• Brilliant stars on the screen by overhead projector.
• Making a constellation slide.
• Ranking the brightest stars of a constellation.
• Traveling through Galaxy: 3D models of constellations.
• About parallax ... and constellations.

Stars

• Measuring distances by parallax method.
• Changes in the sky. Digitally.
• Parallax - It's simple !.
• Measures of long distances.
• What makes a star so special?.
• The movement of stars.
• Why don't green stars exist?
• About distances in the Universe.
• Stellar evolution and the periodic table.

Universe

• Micro and macrocosm.
• Travelling through Galaxy.
• Let's make a portrait of a galaxy.
• Cepheids and distance of galaxies.
• Distance and age of a star cluster.
• Reflection on the shape of spiral galaxies.
• The age of Crab nebula.
• Eta Carinae: Reconstruction of major astronomical event.
• Muons in the mountains.
• How do we know that the Universe is expanding?
• Experiments ans exercises involving gravitational lenses.
• Planetary systems: from Galileo to exoplanets.
• There is more to astronomy than meets the eye!