**Ptolemy** | Article about **Ptolemy** by The Free Dictionary
https://encyclopedia2.thefreedictionary.com/Ptolemy

**Ptolemy** BirthplaceEgypt Occupation mathematician, geographer, astronomer, astrologer **Ptolemy** (Claudius Ptolemaeus), fl. 2d cent. A.D., celebrated Greco-Egyptian mathematician, astronomer, and geographer. He made his observations in Alexandria and was the last great astronomer of ancient times. Although he discovered the irregularity in the moon's motion ...

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