AROUND 150 B.C. THE GREEK ASTRONOMER HIPPARCHUS DEVELOPED A SYSTEM...
19. Around 150 B.C. the Greek astronomer Hipparchus developed a system
to
classify
stars according to brightness.
A. record
B. shine
C. categorize
D. diversify
19. Around 150 B.C. the Greek astronomer Hipparchus developed a system
to
classify
stars according to brightness.
A. record
B. shine
C. categorize
D. diversify