unit 1 understanding the universe 4.5 / 5HideShow resource informationAstronomyearthGCSEEdexcelCreated by: RhymeologyCreated on: 23-06-16 18:58 2634157 Across 1. when a planet is closest to the Sun (e.g. the Earth in January) (10) 6. Longitude line which runs through Greenwich, London = 0' east/west (5, 8) 7. Greek geographer and mathematician in 3BC who first accurately measured the earth's circumference. (12) Down 2. – the greatest angular separation of an inferior planet from the Sun (e.g. Venus is 45 degrees) (8, 10) 3. The Earth takes 23 hours and 56 minutes to rotate. 4 minutes less than 24 hours. (8, 3) 4. when a planets is furthest from the Sun (e.g. the Earth in December) (8) 5. The line at which the sky meets the land (7)
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