12-18 years

Solar eclipses : luminosity, temperature, area covered…

어려움: ★ ★

Solar eclipses : a “scale model”

어려움: ★

Moon, phases and eclipses

어려움: ★ ★

Ring’Round the roses in the houses of the Sun

어려움: ★

Elliptical Orbits

어려움: ★ ★

Rock Cycle

어려움: ★ ★

Solar System Science

어려움: ★ ★

Planet Tours

어려움: ★ ★ ★

Saturn 

어려움: ★ ★ ★

Doppler effect and Saturn spectrum

어려움: ★ ★ ★

Roemer and the velocity of light

어려움: ★ ★ ★

From the Galilean Solar System to the detection of new minor bodies

어려움: ★ ★ ★

Second, metre and speed of light

어려움: ★ ★

Comets: very especial visitors

어려움: ★ ★

Determination of Jupiter’s mass

어려움: ★

Kepler Laws. Experiments

어려움: ★ ★ ★

Galileo and the phases of Venus

어려움: ★ ★ ★

The orbit of Venus

어려움: ★

Navigating the Night Sky

어려움: ★ ★

Equatorial Sundial

어려움: ★ ★

Light pollution, an introduction to astronomy/environmental education

어려움: ★ ★

Light pollution

어려움: ★

Working before observations

어려움: ★

Observation of variable stars

어려움: ★

Determining longitude and latitude

어려움: ★