Where does this definition of astronomical chronology come from?
This entry for astronomical chronology is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is astronomical chronology a noun, verb, or something else?
In this entry, astronomical chronology is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.