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test your knowledge in astronomy.

which bright periodical comet will return to perihelion in 1986 what is the name of bright meteor shower seen every august? what is the color of F-type star? which is the only sattelite in the solar system known to have a reasonably dense atmosphere? in which lunar sea would you find crater bessel? where would you find nix olympica and the syrtis major? who was the danish astronomer who measured the velocity of light in 1675? which major planet was discovered in 1846?

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