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100 megametres: Quiz

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Question 1: 280.000 Mm — Diameter of ________, a typical red dwarf
StarBinary starProxima CentauriAlpha Centauri

Question 2: 299.792 Mm — One light second; the distance ________ travels in vacuum in one second (see speed of light)
OpticsAlhazenPhotonLight

Question 3: 140.000 Mm — Diameter of ________
Ganymede (moon)Callisto (moon)Io (moon)Jupiter

Question 4: 102.000 Mm — Diameter of ________, an unusually dense Jovian planet
51 Pegasi bHD 149026 bHD 209458 bGliese 436 b

Question 5: 174.000 Mm — Diameter of OGLE-TR-122b, the smallest known ________
StarStellar classificationBinary starSupernova

Question 6: 111.191 Mm — 20,000 (nautical, British) leagues (see ________)
Jules VerneThe Begum's FortuneThe Mysterious IslandTwenty Thousand Leagues Under the Sea

Question 7: To help compare different orders of magnitude, this page lists lengths starting at 108 metres (100 megametres or 100,000 ________ or 62,150 miles).
CentimetreKilometreMillimetreDecametre

Question 8: 180.000 Mm — Diameter of ________, the largest known planet
HD 189733 b51 Pegasi bHD 209458 bExtrasolar planet

Question 9: 120.000 Mm — Diameter of ________
NeptuneJupiterSaturnUranus







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