- - Prominent lunar crater
- - occupiers wrongly imprisoned newton and italian astronomer
- - Stargazer's firm and hurtful, dismissing moon
- - Polish astronomer known for his theory that the Earth revolves around the sun
- - Nicolaus ..., scientist who formulated a model of the universe that placed the Sun at the center rather than the Earth
- - Polish astronomer d. 1543
- - Noted astronomer, or cobalt + phosphorus + erbium + nickel + copper + sulfur?
- - Polish astronomer who produced a workable model of the Solar System
- - Renaissance astronomer
- - Half-hearted policeman, copper in the wrong, upset old scientist
- - Polish astronomer whose theory on the solar system was published in 1543
- - He placed the sun at the center of the universe
- - Pioneer in heliocentric theory
- - Astronomer is firm: 'Highly injurious to ignore moon'
- - Polish scholar manages to get across runic in translation
- - Astronomer who claimed the Earth orbited the Sun
- - Father of Modern Astronomy
- - Astronomer born in Torun, Poland
- - He is a near anagram of 100 Across
- - Astronomy's father
- - Pioneer in astronomy, c. 1530.
- - Polish astronomer who proposed that the planets orbit the Sun
- - polish astronomer whose theory of the solar system was published in 1543
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