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The first such map, called the International Celestial Reference Frame (ICRF), was completed in 1995. It was made over four years using painstaking analysis of observations on the positions of ...
Interesting Engineering on MSN11d
2,300-year-old Chinese star chart is world’s oldest celestial map, reveals new studyUtilizing advanced imaging techniques, researchers at the Chinese National Astronomical Observatories determined that the ...
Researchers at Italy's National Institute for Astrophysics discovered a celestial map believed to be from between 1800 to 400 BC. Scientists say there's one star on it that doesn't match our sky.
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