UK Night Sky This Week

🌕 This Week's Highlight: The Full Buck Moon — and a Moon-Washed Meteor Double Peak

The Moon dominates this week, reaching Full — the Buck Moon — at 15:36 BST on Wednesday 29 July. The name is an old one, from the season when male deer start growing their new antlers. Like all high-summer full Moons it rides low across the southern sky, and that low path is exactly what makes it worth catching: as it climbs over the south-eastern horizon around dusk on Wednesday evening, the thick slab of atmosphere near the horizon can lend it a warm golden or amber tint, and against foreground trees or buildings it looks enormous. No equipment needed — just a low, clear view to the south-east and the twenty minutes after it rises.

The timing is a mixed blessing, because two meteor showers reach their peak on almost the same night. The Southern Delta Aquariids and the Alpha Capricornids both maximise on the night of 29–30 July, but with the sky flooded by an all-but-full Moon, most of their fainter streaks will be lost. It's not a total write-off: the Alpha Capricornids are famous for producing slow, bright fireballs that can punch through moonlight, so it's still worth a glance at the southern sky in the small hours. But temper expectations — this is a year to enjoy the Moon rather than count meteors.

The real observing reward comes later in the week and before dawn. Saturn is the standout planet, running retrograde through Pisces, rising before midnight and standing a comfortable 30° up in the south by around 03:00 BST — a lovely telescopic sight building towards September's opposition. And once the Moon has passed Full, it starts rising noticeably later each night, so by Friday and Saturday a genuinely dark evening window reopens before moonrise — the best chance all week for anything faint.

🌟 Planets Visible from the UK This Week

🌛 The Moon This Week

This is the Moon's week, front and centre. It starts Monday as a fat waxing gibbous and swells to Full — the Buck Moon — at 15:36 BST on Wednesday 29 July, before beginning to wane through the weekend. Because it's high summer, the Full Moon rides low across the southern sky, mirroring the low path the Sun takes in winter. That low arc is worth catching at moonrise: as it lifts over the south-eastern horizon around dusk on Wednesday, atmosphere near the horizon can tint it a warm amber, and it looks strikingly large against foreground scenery.

Through the week the Moon slides eastward through the low southern constellations — Sagittarius, Capricornus, Aquarius and into Pisces — so it never climbs far above the horizon. A Full Moon is flat and dazzling through a telescope, with the shadows gone, but hold on until later in the week: as the terminator creeps back across the waning gibbous from Thursday on, crater walls and mountain shadows return along the Moon's eastern edge and it becomes rewarding to explore again.

The trade-off, of course, is moonlight — and this week there's a lot of it. Early on, the near-full Moon is up for most or all of the night, washing out everything faint. The good news is that after Wednesday it rises progressively later, so by Friday and Saturday a dark evening window reopens before it clears the horizon. The usual July caveat still applies — most of the UK gets no true astronomical darkness this time of year — but that late-week pre-moonrise window is your best shot at the deep sky.

🌌 Deep Sky Targets for UK Observers This Week

With a Full Moon flooding the sky, this is a week to be picky. Stick to the moonlight-proof targets — double stars and bright clusters shrug off the glow — and save anything faint for the dark evening window that reopens before moonrise on Friday and Saturday. Work through these:

• Albireo (Beta Cygni) — the perfect bright-Moon target. One of the loveliest coloured double stars in the sky, at the head of Cygnus overhead: a small telescope at modest power splits it into a golden star with a vivid blue-white companion, and moonlight doesn't dim the show one bit.
• Mizar and Alcor — the famous double in the Plough's handle, high in the north-west. Keen eyes split the pair unaided (an old test of eyesight), and a telescope reveals Mizar is itself a double — a lovely quick win while the Moon rules the sky.
• M13 — Great Hercules Globular Cluster — bright enough to survive some moonlight, high in the south-west as the sky darkens. A small telescope starts resolving its edges into a swarm of stars — hundreds of thousands of them, 25,000 light-years away. Best in the late-week window with the Moon down.
• M57 — the Ring Nebula in Lyra — the famous smoke-ring of a dying star, between the two lower stars of Lyra just below brilliant Vega. Small but high-surface-brightness, so it holds up at 100× even with a Moon about — though it's far better once the Moon has left the evening sky towards the weekend.
• The summer Milky Way — strictly a Friday/Saturday treat this week. Once the waning Moon rises late enough to leave a dark evening window, sweep binoculars through Cygnus, high overhead, from a rural site for soft star-clouds and dark rifts.
• Noctilucent clouds — the season is entering its final weeks, so catch them while you can, and moonlight doesn't spoil them. Look low to the north between about 23:00 and 01:00 BST for wispy, electric-blue tendrils glowing after twilight has faded — ice clouds at the edge of space, 80 km up.

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📅 Night-by-Night Planner: 27 July – 1 August 2026

Sunset ~20:55 BST · No true astronomical darkness for most of the UK · All times BST · Full Buck Moon Wednesday — bright all week, with a dark evening window returning by the weekend

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