Full Corn Moon This Week — Then New Moon Skies Return October 9–15

The moon is waxing toward September’s Full Corn Moon on September 26, so this week favors moonlit hikes and landscape photography over deep dark-sky viewing — the first-quarter moon on September 19 already put it up for most of the evening. True dark skies return as the moon wanes toward the New Moon on October 10.

Mark the calendar: the Keweenaw Mountain Lodge hosts a Northern Lights Photography Workshop on October 10 from 7:00 to 9:00 PM, right at the start of the next “Lights Out!” new-moon week, October 9–15 — the darkest, clearest skies of the month. Later on, the Orionid meteor shower peaks before dawn on October 23. It is one of two showers produced by debris from Halley’s Comet (with the Eta Aquariids in May) and typically delivers 10–20 meteors per hour under a dark sky; in 2026 a waxing gibbous moon is up for the first half of the night, so the best window is after moonset and before dawn.

Space-weather forecasters are also watching for a chance of a minor (G1) geomagnetic storm September 24–26. That is a real, if modest, chance to catch aurora activity on the northern horizon from the Keweenaw. It lands right at the Full Corn Moon, so only a strong, active display will show up against the bright sky — worth a glance north after dark on a clear night, without a guarantee.

 


  • Full moon (Corn Moon): September 26 — bright, moonlit skies; better for a moonlit hike than stargazing
  • Possible minor aurora: September 24–26 — a modest G1 storm chance, competing with the bright moon
  • New moon & “Lights Out!” week: October 9–15, anchored by the New Moon on October 10 — the darkest skies of the month
  • Northern Lights Photography Workshop: October 10, 7:00–9:00 PM at the Keweenaw Mountain Lodge
  • Orionid meteor shower: peaks before dawn on October 23 — best viewed after moonset, in the hours before sunrise
  • Full moon (Hunter’s Moon): October 26

New Moon Skies Are Here: September 6–14 Is Prime Stargazing Week

The new moon arrives in the early hours of September 11. During this time the Keweenaw Mountain Lodge will have “Lights Out!” — running September 6 through 12. With little to no moonlight washing out the sky, this is one of the best weeks of the month to visit after dark. Pair your visit with the Northern Lights Photography Workshop on September 11 from 7:30 to 9:30 PM to learn how to capture the Milky Way, and possibly the aurora, on camera.

Solar activity has been elevated this season. A geomagnetic storm watch on August 27–29 sent the northern lights as far south as Wisconsin and New York, with some of the clearest displays reported across the Upper Peninsula. Check the NOAA aurora forecast the night of your visit, then head out to Brockway Mountain, the shoreline of Lake Superior, or the Lodge grounds for a dark to view to the north.

 


  • New moon: night of September 10–11 — the darkest sky of the month; best window for Milky Way and deep-sky viewing runs roughly September 7–14
  • International Observe the Moon Night: Saturday, September 19 (NASA’s global observing event) — falls right alongside the first-quarter moon (Sept 19–20), which is a good phase for viewing lunar craters and mountains through a telescope before it sets.
  • Full moon (Corn Moon): September 26 — the weakest week of the month for deep-sky viewing, but a good week for moonlit-landscape photography instead.