Harvest Moon Trail

APOD: 2021 September 23 - Harvest Moon Trail

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2021 September 23
See Explanation.  Clicking on the picture will download
the highest resolution version available.

Harvest Moon Trail
Image Credit & Copyright: Mike Cohea

Explanation: Famed in festival, story, and song the best known full moon is the Harvest Moon. For northern hemisphere dwellers that's a traditional name of the full moon nearest the September equinox. Seen from Saunderstown, Rhode Island, planet Earth, this Harvest Moon left a broad streak of warm hues as it rose through a twilight sky over the Newport Bridge. On September 20 its trail was captured in a single 22 minute exposure using a dense filter and a digital camera. Only two days later the September equinox marked a change of season and the beginning of autumn in the north. In fact, recognizing a season as the time between solstice and equinox, this Harvest Moon was the fourth full moon of the season, coming just before the astronomical end of northern summer.

Perseid Outburst at Westmeath Lookout
Equinox on a Spinning Earth

By accepting you will be accessing a service provided by a third-party external to https://concellation.com/