Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke3817.&link_type=abstract
"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 3817. Bristol: Institute of Physics Publishing, 2001
Astronomy and Astrophysics
Astronomy
History And Archaeoastronomy, Biographies
Scientific paper
Astronomer to the Chinese war-lord Wang Mang. A hundred years before
Ptolemy he constructed astronomical tables, and listed 1080 stars in six
magnitude categories. He determined the year to be 365.2502 days. In AD
4, he organized a national congress on the modern scale, attended by
1000 scientists....
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