Andreas Cellarius (Andrew Cellarius, Andreas Keller, lat. Andreas Cellarius (Dutch: Andreas Keller, circa 1596, Neuhausen [now a district of worms] - 1665 horn) was a Dutch and German mathematician, educator, cartographer, and fortification theorist.
Born in Neuhausen near worms. He studied at the University of Heidelberg. Protestant.
In 1625, he married and lived in Amsterdam, where he taught at a Latin school. From 1637 until his death ,the "rector" of a similar school in horn.
Cover of A. Cellarius ' monograph Regni Poloniæ, Magnique Ducatus Lituaniæ
In 1652, he published in Amsterdam the Latin monograph Regni Poloniæ, Magnique Ducatus Lituaniæ. Omniumque regionum juri Polonico Subjectorum. Novissima Descriptio, Urbium potissimarum icones elegantissimas et delinitionem hujus Regni Geographicam oculis subjiciens ("Kingdom of Poland, Grand Duchy of Lithuania. All lands are subject to Polish law. The latest description, the most elegant image of the most significant cities and a visual sketch of the geography of this Kingdom"). In 1659, the second edition of this monograph (in Latin) was published in Amsterdam. In 1600, also in Amsterdam, Regni Poloniæ was reissued in German.
Cellarius did not write his work on the basis of personal observations, but, in his own words, " collected with considerable effort from various authors." Regni Poloniæ Cellarius dedicated to one of his pupils- "the noblest and most beautiful young man Jacob forest", the son of Theodore forest, one of the dignitaries of North Holland. Cellarius ' work is quite extensive (605 pages in 16°), contains a map of the Polish possessions and local history of the most famous places. There are many links to various sources that he is preparing about the great erudition of the author. The translation of chatstee's work in Russian was included in the "Collection of materials for the historical topography of Kiev and its environs" edited by V. Antonovich and F. Ternovsky. 
The most famous work of the scientist was Harmonia Macrocosmica ("Macrocosmic harmony"), published in 1660 and reprinted the following year.
The asteroid 12618 Cellarius, discovered on September 24, 1960, is named after the scientist.