Hipparchus (c. 190-120 BC)
Hipparchus or Hipparchos did his observations from Rhodes between
146 and 127 BC. He was the first astronomer who compiled a catalog af stars;
this work was perhaps triggered by the observation of a "New Star" (Nova) in
the constellation Scorpius in 134 BC. He included two "nebulous objects" in
his catalog, the Praesepe star cluster (M44)
and the Double Star Cluster in Perseus,
h+chi Persei (NGC 869+884).
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Hartmut Frommert
(spider@seds.org)
Christine Kronberg
(smil@lrz.uni-muenchen.de)