Within this use case you learn about motion of the planets both
around the Sun and in the sky, planetary conjunctions and what might
have been the Star of Bethlehem.
Within this use case you learn about Kepler's laws, a cornerstone of
astronomy and a fundamental brick of both Newton's and Einstein's
theories of gravitation. This use case is complemented by use cases 10
and 16 (at different levels of difficulty.
Within this case you learn that stars that seem "fixed" on the sky
may actually move, even if their motion is so slow for the naked eye
to be undetectable. You compare two photographs of the Barnard's Star
taken several years apart and will be able to estimate its
displacement on the sky. Your estimate will be very close to actual
measurements.
Euskal Herriko Unibertsitatea / Universidad del Pais Vasco /
University of the Basque Country
Description:
Images, maps, photometries and other kind of planetary graphic
platforms made by amateur astronomers. Data is received by the
astronomers themselves and can be subject of change