Moreover, they took to the skies as close as they could to the September 23 equinox, when the positional relationship of the Earth and sun offers the best viewing opportunities. Over the following ...

23 in the Northern Hemisphere ... in the 1700s on the last week of September. Feasting and celebrating were often combined with giving thanks. You can find equinox celebrations in cultures across ...

Autumn is rapidly approaching. The Autumn equinox falls on 23 September, when night and day are pretty much exactly the same length – 12 hours – all over the world; equinox means "equal night ...