28–31 Aug 2018
EPFL
Europe/Zurich timezone

【84】 Star catalogues: from Hipparchos to Hipparcos (ESA)

31 Aug 2018, 12:45
30m
CE 100 (EPFL)

CE 100

EPFL

Talk History of Physics History of Physics

Speaker

Dr Bernhard Braunecker (SPS)

Description

The greek astronomer Hipparchos of Nikaia (194-120) BC is said to have compiled a catalogue with some hundreds of stars, although this catalogue has not survived history. Nevertheless this caused the European Space Agency ESA to call a catalogue of 120 000 stars High Precision Parallax Collecting Satellite, i.e. Hipparcos, measured by satellites in the 1990s with an accuracy of 1 milli-arcsec. We show how the catalogue data are applied to track stars in astronomy, mention the Farnese celestial globe with its star configuration, which is considered by some experts as proof for the lost Hipparchos catalogue, and finally show how we can use the star data to calibrate optical telescopes for space applications.

Author

Dr Bernhard Braunecker (SPS)

Presentation materials

There are no materials yet.