A new preprint suggests that an ancient Chinese star catalog dates to 355 B.C.E. But other researchers aren't convinced, ...

They found that the ancient star chart actually dates to 355 B.C. — 250 years earlier than previously thought — and that it was later updated around A.D. 125. This would make it the oldest-known star ...

By comparing his complete star chart with more fragmentary measurements ... Reversing time, they wound the stars of the Corona Borealis back to the year when the luminaries shone in the sky ...

The Dunhuang map (not the chart studied in the new research) is an early star map from China dating to the Tang Dynasty (A.D. 618 to 907). | Credit: CPA Media Pte Ltd via Alamy The oldest star ...