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Set B3 - Out Into Space - card information

19. Comets

19. Comets

Comets are common, curious and impressive visitors. They move amongst the stars like planets. Most are small and can be seen only with a telescope. Their orbits vary: some are parabolic, but most are elliptic. Sometimes they increase enormously in size and likewise diminish. Coming from afar they go round the Sun and then disappear from whence they came. Majority have no 'tail', but some have a large 'tail' which always points away from the Sun; these 'tails' caused the Greeks to call them "the long-haired ones", hence name Comets ... Kometes (Gr.) 'long-haired'.