The sky over the bay.
Duxbury has one of the better front-row seats on the South Shore: a huge open horizon across Cape Cod Bay to the east and south, and a long barrier beach with remarkably little artificial light. This page tracks what is happening up there each month: sky events you can see from town, and the constellations worth learning right now. Refreshed monthly. For the horoscope, see Astrology.
LAST UPDATED: AUGUST 15, 2026 · COVERING AUGUST 2026
Moon phase and sunset computed for Duxbury, 42.04°N · predictions, not observations.
The night sky over Duxbury Beach · Duxbury Uncommon illustrationThis was a big month. One act left.
August 2026 packed three headline events into seventeen days: a partial solar eclipse over lunch, a strong Perseid peak that same night, and a near-total eclipse of the full moon to close things out. The first two are already behind us. The one still ahead, on the 27th and 28th, might be the best of the three. The chart shows the southern sky from the beach around 10 p.m. in mid-to-late August.
The August sky calendar
Everything below is visible from town with your own eyes, weather permitting. Times are local. For late Perseids and the lunar eclipse, the beach is still the move: park yourself facing the water, away from the crossover lights, and give your eyes twenty minutes to adjust.
The Sturgeon Moon gets eclipsed
The full moon of August 28 slides almost entirely into Earth's shadow. The partial phase runs 10:33 p.m. to 1:52 a.m., with about 96 percent of the moon covered at maximum, 12:12 a.m. Faint penumbral shading actually starts creeping in earlier, around 9:23 p.m., but it is subtle enough that most people will not notice anything until the partial phase gets underway. Technically a partial eclipse, practically a total one: expect the moon to go deep copper with one bright sliver holding out. No equipment or protection needed, and eastern Massachusetts sees the whole show at a civilized height in the sky. It will be the deepest and most dramatic lunar eclipse until the total lunar eclipse of December 31, 2028, and this one happens right over Duxbury Bay. One more thing for beach-goers: high tide hits 10.3 feet around 11:55 p.m., right as the partial phase gets going, so set up well back from the wrack line.
The Perseids are still falling, just barely
The shower peaked overnight on the 12th under a completely dark, moonless sky, about as good a peak as this shower gets. Rates are tapering off now, but any clear night through roughly the 24th can still turn up a straggler or two, often the long, bright ones. Worth a look if you are already out for the eclipse buildup.
The lunch-hour eclipse and the Perseid peak
For the record, not for planning: a spread of six planets crossed the dawn sky around the 12th, a few naked-eye and the rest binocular-only. That same day, a partial solar eclipse took a bite out of roughly one sixth of the sun just before 2 p.m., while Iceland and Spain got the total show. That night into the 13th, the Perseids peaked under a completely moonless sky, the best possible setup for this shower. None of it repeats until next year.
There is one more August connection worth knowing, and it is not quite the one you might guess. The Aug. 12 new moon fell unusually close to lunar perigee, its closest approach to Earth, and that proximity is what strengthened this month's spring tides, not what lined up the eclipses. Eclipses happen when the sun, Earth, and moon align near the moon's orbital nodes, a separate piece of geometry entirely. NOAA predictions for Duxbury Harbor put that week's overnight high around 11.8 feet. The Aug. 27–28 eclipse, for what it's worth, falls on the other side of the moon's orbit, a few days past apogee, its farthest point from Earth all month. The full tide picture is on our Duxbury tide calendar.
The August scorecard.
Worth staying up late? On the 27th, absolutely. Set an alarm if you have to.
Our judgment, not a scientific instrument.
Learn the August sky in five minutes.
Same five stars, five minutes, works on any clear night this month. Start here and each visit gets easier.
- Find Vega, nearly overhead and one of the brightest stars up there right now.
- Find Deneb and Altair. Together with Vega they form the Summer Triangle.
- Follow Cygnus south along the Milky Way, its cross shape flying down the middle.
- Low in the south, find the Teapot shape of Sagittarius.
- Turn northeast and look for Cassiopeia's giant W.
Constellations this month
If you're going to learn three things in the night sky all year, August is a pretty forgiving month to start. The summer landmarks are all up at once, weather cooperating. From the beach around 10 p.m.:
Straight up: the Summer Triangle. Three bright stars from three constellations. Vega is the brilliant blue-white one nearly overhead, Deneb marks the tail of Cygnus the swan (whose cross shape flies down the Milky Way), and Altair sits lower toward the south. Find these three and you have your bearings for everything else.
South, over the water: Scorpius and Sagittarius. The scorpion's fishhook of stars hangs low above the bay with Antares glowing red at its heart. Just east of it, Sagittarius looks exactly like a teapot, and the steam rising from its spout is the actual center of our galaxy. On a moonless night the Milky Way from the beach can look like thin cloud until you realize it is not moving.
Northeast, late: Cassiopeia and Perseus. The wide W of Cassiopeia climbs the sky after 10 p.m. with Perseus rising beneath it. That patch is where the Perseids appear to stream from, which is how the shower got its name.
Northwest: the Big Dipper, sliding down toward the horizon, its two outer bowl stars still pointing faithfully at Polaris. And low in the west, the orange star chasing the sunset is Arcturus, the spring star taking its leave.
A local tip: our darkest sky is to the east and southeast, out across Cape Cod Bay. The glow in the northwest is Boston and Route 3. Face the water and let the mainland argue with itself behind you.
What it actually looks like.
Astronomy photography ruins expectations. Long exposures stack minutes of light into one frame; your eyes do not work that way. Here is what these things actually look like from a Duxbury beach, camera or no camera.
The Milky Way
Not the purple galaxy from the photographs. From a dark stretch of beach it looks more like a pale, uneven haze running through the stars, almost like thin cloud. Give your eyes twenty minutes before deciding you cannot see it.
A Perseid
Usually a one-second streak, gone before you can point. Occasionally a bright fireball leaves a glowing trail that lingers for a second or two after.
The lunar eclipse
No telescope required, and nothing sudden. The moon dims gradually over more than an hour, so checking back every five or ten minutes is often more satisfying than staring the whole time.
Where to look from Duxbury.
Face the water from the beach. The darkest, broadest horizon in town, and the right direction for anything rising, including tonight's moon.
Sagittarius, Scorpius, and the brightest stretch of the summer Milky Way all sit low over the water this time of year.
Greater Boston and Route 3 throw enough skyglow that this is the direction to turn your back on, not toward.
Before you go.
- Bring a chair or a blanket. The sand is not comfortable for two hours.
- Bring a sweatshirt even if the day was warm. The water cools things off fast after dark.
- Bug spray, unless you enjoy the alternative.
- Skip the bright white flashlight. Red light, or your phone turned all the way down, keeps your night vision intact.
- Give your eyes twenty to thirty minutes to adjust before judging what you can see.
- Binoculars help with the moon and star fields, but they generally make meteor watching harder, not easier.
- Check the tide before you set up near the water, especially on eclipse night. Do not plant yourself close to the wrack line with the tide still coming in.
Looking for the horoscope?
The sky calendar and constellation guide above are astronomy; the star signs are astrology, and they keep separate quarters here. Find this month's readings, written fresh for this town, on the Astrology page.
Tides
The month's full tide chart for Duxbury Harbor: every high and low, king tides flagged, moon phases marked.
Walk the flats
A daily answer to one question: can you walk the bay flats today?
Astrology
Twelve signs read fresh each month, with a South Shore accent.