Celestial cycles guide food and seasonal knowledge

Identifying older asterisms requires translation between textual descriptions and contemporary celestial reference systems.

Astronomers calculated months, seasons, conjunctions and eclipses for ritual and civil use.

Ephemerides turn theoretical models into repeatable predictions that can guide observation and calendrical decisions.

The paper documents sky knowledge maintained through oral tradition, ceremony, art and practice.

Some Aboriginal traditions identify forms in the dark lanes of the Milky Way rather than only connecting bright stars.

Careful observation and transmission can be rigorous even when knowledge is not stored in books or institutions.

The authors compare written colonial sources, oral traditions and astronomical calculations to identify observational knowledge.

Accounts may preserve unexpected celestial events as well as repeating lunar, solar and seasonal cycles.

Stars and their rising or setting positions can mark directions, travel routes and seasonal change.

Researchers need to respect community authority, restricted knowledge and the harms created when outsiders extract cultural information.