The equinox signals the start of autumn, and Neptune reaches opposition. Find out what other astronomy highlights are coming up in our weekly stargazing guide.

Find out more details about the equinox and causes it: https://www.skyatnightmagazine.com/space-science/autumn-equinox-when-is-what-means

Transcript: www.skyatnightmagazine.com/podcasts/star-diary-18-sept-2023

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