World oldest star chart,
‘Chunsang bunya yolcha jido’ or ‘Chunsang jido ‘.
This star chart made more than 2000 years ago at first,
And at the beginning of Chosun,
This star chart had been modified of north poler part because of axial precession.
There are 1467 stars in this star chart,
And whole circle is divided by 365.25 degrees, not 360 degrees.
Chosun is one of old Korea names as you know.