August 2026 Astronomical Events: Solar Eclipse, Perseids Under a Fully Dark Sky, Six Planets at Dawn, and a Lunar Eclipse

August 2026: the busiest month of the year, with August 12 as the turning point

If there's one month Italian amateur astronomers have been waiting years for, it's this one. August 2026 packs into a few weeks a total solar eclipse — the first in continental Europe since 1999 — that from Italy will appear deeply partial, the Perseids' peak coinciding with New Moon, a parade of six planets before dawn, and a near-total lunar eclipse closing out the month. August 12 in particular lines up three events within twenty-four hours: six planets above the horizon before sunrise, the partial eclipse at sunset, and the meteor peak the following night. The planetary picture shifts compared to July: Jupiter re-emerges from the solar glare into the morning sky after its July 29 conjunction, Saturn gains altitude heading toward its October 4 opposition, and Venus reaches greatest evening elongation on August 15. Meanwhile, nights are finally long and dark enough to deliver deep-sky sessions worthy of the name.

Moon phases and observing planning

The distribution of phases in August 2026 is, simply, exactly what every observer would wish for. After the Last Quarter on August 6, moonlight fades quickly toward New Moon on August 12, which falls precisely during the hours of the Perseids' peak. The window between August 7 and 17 is the best of the month for both meteors and deep-sky, with nights noticeably longer than in July and astronomical darkness now full through the central hours. In the second half of the month the Moon reasserts itself, with First Quarter on August 20 mostly disturbing early evening, and Full Moon on August 28 closing the cycle and bringing along the month's second eclipse.

• August 6: Last Quarter
• August 12: New Moon — coincides with the solar eclipse
• August 20: First Quarter
• August 28: Full Moon (04:18 CEST) — Sturgeon Moon, in partial eclipse

The Full Moon of August 28 is traditionally called the Sturgeon Moon, a name of North American origin tied to the period when sturgeon fishing in the Great Lakes was most abundant. This year the full moon is notable for more than its name: the Moon enters Earth's shadow cone a few hours later, producing a partial eclipse so deep it comes close to totality.

August 2–3 — Comet 10P/Tempel at perihelion

The month opens with an appointment for binoculars and small telescopes. The periodic comet 10P/Tempel (also known as Tempel 2) reaches perihelion on August 2, coming to within about 1.42 astronomical units of the Sun, roughly 212 million kilometres. The following day, August 3, it reaches its closest approach to Earth: 0.414 AU, just under 62 million kilometres.

Forecasts place it around magnitude 8.7: it won't be naked-eye visible, but remains within reach of a good astronomical binocular or a small telescope under sufficiently dark skies. Watch out for a detail that regularly disappoints beginners: for comets, magnitude refers to brightness spread across the entire area of the object, so a comet at magnitude 8.7 appears noticeably fainter than a star of the same magnitude. Expect a diffuse smudge, not a sharp point of light.

Visibility: from central Italy's coordinates, on August 2 10P/Tempel rises around 21:30 toward the southeast, reaches its highest point around 01:40 at roughly 23° above the southern horizon, and stays observable for nearly the whole night. An ideal target for medium-focal-length astrophotography with tracking on the comet, or for a visual session with a wide-field refractor.

A few facts for context: 10P/Tempel belongs to the family of Jupiter-family comets, was discovered on July 4, 1873 by German astronomer Wilhelm Tempel, and completes an orbit in about 5.37 years. Its nucleus is unusually large for this category — an estimated diameter of about 10.6 km — and extremely dark: it reflects just over 2% of the sunlight it receives.

August 9 — The crescent Moon meets Mars in Taurus

In the late hours of the night of August 9, a thin waning crescent Moon — about 18% illuminated — comes within roughly 5° of Mars, a separation equal to ten times the apparent diameter of the Full Moon. From central Italy's coordinates the Moon rises around 01:45, with Mars appearing on the eastern horizon around 02:20; the pair climbs steadily higher for the rest of the night, between the constellations of Taurus and Auriga.

What makes the scene worthwhile isn't so much the conjunction itself as the surrounding cast: the same field also holds the Pleiades, the Hyades, and bright Aldebaran. Wide-field binoculars help appreciate the clusters better, but no equipment is strictly needed to enjoy the encounter. For photography, this is one of the month's best opportunities: wide-angle with landscape for the overall scene, or a 135–300 mm telephoto to tighten in on the Moon, Mars and the Pleiades.

August 12, before dawn — The parade of six planets

On the morning of August 12, before sunrise, Jupiter, Mercury, Mars, Uranus, Saturn and Neptune are simultaneously above the horizon: what's commonly called a planetary parade or alignment.

A necessary clarification, since the word "alignment" reliably sets up the wrong expectations: the planets do not form a straight line and are not actually close together in space. They simply appear distributed along the same broad arc of the sky — the ecliptic — because planetary orbits lie roughly in the same plane. The configuration also isn't limited to a single instant: it's observable on the mornings before and after as well. August 12 represents the best compromise between Mercury and Jupiter's height above the horizon and the sky's growing brightness.

Rising sequence (central Italy coordinates, approximate times):

• Neptune — rises first, around 22:00. Requires a telescope.
• Saturn — around 22:30, in Pisces. Easy naked-eye, spectacular through a telescope.
• Uranus — around 00:30. Within reach of binoculars, if you know where to look.
• Mars — around 02:15, recognisable by its reddish colour.
• Mercury — around 05:00, very low on the eastern horizon.
• Jupiter — about twenty minutes later, around 05:20, immersed in twilight. Sunrise is around 06:20.

Strategy: start while the sky is still fully dark, hunting down Neptune and Uranus with instruments first, and finish with Mercury and Jupiter once twilight is already well advanced. For the two lowest planets you need clear skies and a perfectly unobstructed view to the east: buildings, trees, hills or haze will erase them without appeal. Jupiter, only just re-emerging from its July 29 solar conjunction, is the hardest of the six to catch.

August 12, at sunset — The solar eclipse from Italy

On the evening of August 12 the Moon passes in front of the Sun, producing a total eclipse: the first observable from continental Europe since 1999. The path of totality begins in Arctic Russia, crosses Greenland and Iceland, touches a small part of Portugal, and cuts across Spain from northwest to southeast, ending its run just beyond the Balearic Islands, over the Mediterranean. Totality lasts between a minute and a half and two minutes, with the maximum — just over 2 minutes 18 seconds — off Iceland's west coast.

From Italy the eclipse is partial, and this needs stating clearly right away: during a partial eclipse the Sun is never fully covered, and the corona is not visible, not even at the event's peak. Anyone wanting to see the corona, Baily's beads and the diamond ring effect needs to be inside the path of totality.

Coverage percentages and timing

Coverage grows steadily from southeast to northwest: from around 18% in Calabria to over 93% in Piedmont and Liguria, with the highest values — around 95% — in western Liguria and northwestern Sardinia. The most favoured regions are the northern and western ones: Piedmont, Aosta Valley, Liguria, Lombardy, Emilia-Romagna, Tuscany and Sardinia.

• Start of the event: between 19:27 and 19:38 depending on location.
• Maximum: around 20:20 in the northwest and Sardinia, around 20:11 in Rome, already at around 19:56 in Palermo.
• Milan: starts 19:27, maximum around 20:20, coverage of the solar disk around 93%.

The real problem isn't coverage: it's the horizon

This is the part many will underestimate. The eclipse occurs with the Sun very low on the western horizon, close to setting. At such shallow altitudes it's not enough to know how much of the solar disk will be covered: you need to know whether you'll actually be able to see the Sun from where you're standing. A rise toward west-northwest — the direction in which the Sun sets — can hide it entirely, casting shadows tens of kilometres long. In central and southern regions, moreover, the absolute maximum coverage falls after local sunset and is therefore not observable.

There's a paradox worth keeping in mind when choosing a site: precisely where the eclipse is deepest, the Sun is also lowest. The depth of the phenomenon and the ease of observing it pull in opposite directions. At maximum, clear views survive only where the horizon to the west-northwest is open — plains, coastlines, well-exposed ridges. Valleys and slopes with a mountain behind them to the west slip into shadow and lose the show.

INAF has produced a series of visibility maps for the entire national territory for the occasion, calculated via ray-tracing on the TinItaly digital elevation model from INGV at a resolution of 10 metres per pixel, accounting for Earth's curvature and atmospheric refraction. The maps classify every point of the territory as clear view, marginal, blocked by terrain, or Sun already set, and are available both for the whole country and for the 190 tiles into which the model is divided. It's the first tool to consult when choosing where to go — ideally followed by a site visit in person a few days beforehand, at the same hour, to verify actual visibility of the Sun at sunset.

For those who can't travel, INAF is organising a livestream starting at 19:30 on August 12, in collaboration with the Unione Astrofili Italiani and the Associazione dei Planetari Italiani, with footage of the partial eclipse from the UAI sections in Cremona and La Spezia and coverage of totality from Spain, expected around 20:30 Italian time.

August 12–13 — Perseids at peak under a moonless sky

A few hours after the eclipse, the day's third act begins. The Perseids reach their peak on the night between August 12 and 13, with a ZHR — zenithal hourly rate — of about 100 meteors/hour under ideal observing conditions. The active period runs from the second half of July into late August.

What makes 2026 a year worth marking is the coincidence with the New Moon of August 12: for the entire night the sky will be completely free of moonlight, allowing even faint meteors to be caught. As the Meteor Section of the Unione Astrofili Italiani points out, this is a configuration that doesn't occur every year, making 2026 one of the best opportunities of the decade.

According to the International Meteor Organization's calendar, the main peak is expected in the early hours of August 13, roughly between 04:00 and 06:00 Italian time, within a broader window of elevated activity spanning the whole night. From Italian latitudes the radiant, in the constellation Perseus, reaches a useful height already around 22:00–23:00 and keeps climbing until dawn.

How to observe them (and how not to)

For the Perseids no optical instrument is needed: binoculars and telescopes restrict the field of view too much and are counterproductive. The ideal approach is to find a location far from artificial lights, give your eyes at least twenty minutes to adapt to the dark, and watch a wide swath of sky — preferably toward the northeast in the early hours of the night and toward the zenith in the hours before dawn, when the radiant is highest.

A useful figure for calibrating expectations: the ZHR is a theoretical value, calculated assuming a perfectly dark sky, the radiant at the zenith, and an unobstructed view. The number actually observable will inevitably be lower and depends above all on light pollution. From a well-lit lowland site you'll count a few dozen meteors an hour; from a dark high-altitude site the count changes dramatically.

Origins: Swift-Tuttle and Schiaparelli's insight

The Perseids derive from the periodic comet 109P/Swift-Tuttle, discovered in 1862, which with an orbital period of about 133 years leaves behind a vast stream of fragments and dust along its orbit. Every summer Earth crosses this region, and the particles enter the atmosphere at about 59 km/s — over 210,000 km/h — burning up from friction and producing the bright trails we know as shooting stars.

The link between meteor showers and comets was understood precisely through this shower: in 1866 Giovanni Virginio Schiaparelli showed that the Perseids' orbit coincided with that of Swift-Tuttle, laying the foundations of modern meteor science. In Italy the shower is known as the "Tears of Saint Lawrence": the saint's feast day falls on August 10, and for centuries the peak occurred close to that date, while today it generally arrives two or three days later.

The other showers of August

The Perseids monopolise attention, but the UAI Meteor Section reports several other showers active during the month:

• Northern delta-Aquariids (NDA) — ZHR of about 5, observable in the first days of the month in the hours before dawn, the last representatives of the meteor complex that characterises late July.
• kappa-Cygnids (KCG) — ZHR of about 3, active in the second half of the month. Appreciated because they produce relatively slow, often bright meteors, and because they've shown unexpected activity increases in the past.
• lambda-Aquariids (LAQ) and kappa-Draconids (KDR) — ZHR between 2 and 3. The latter are particularly favourable from Italy thanks to their northern radiant, observable for most of the night.
• kappa-Perseids (KAP) and August Draconids (AUD) — ZHR of about 2, the former easily observed alongside the Perseids.
• Aurigids (AUR) — normally ZHR of about 2, but hold a special place in meteor history for having, on rare occasions, produced sudden outbursts with rates far above normal. Worth keeping an eye on.
• pi-Perseids (PIE) and August theta-Aquilids (ATA) — ZHR of about 2, contributing to the overall meteor count during the long summer nights.

For anyone documenting the event: a fisheye or wide-angle camera (24 mm or wider) on a fixed tripod, pointed at the zenith and set to continuous shooting, is the ideal setup for capturing a full night's activity and producing a time-lapse. With the moonless sky of August 12–13, conditions for meteor imaging are as good as they get.

August 15 — Venus at greatest evening elongation

While the planets crowd the morning sky, Venus remains the undisputed queen of the evening. On August 15 it reaches greatest eastern elongation, pulling out to 45°53' from the Sun: the year's widest apparent separation and the best time to observe it. It shines at magnitude −4.3 in the constellation Virgo, visible in the west after sunset, and stays well placed in the evening sky through late September.

The interesting detail for telescopic observers is the phase: at greatest elongation Venus shows exactly a quarter phase — a disk illuminated by half, like a small Moon at first quarter. It's the most instructive configuration of the entire Venus cycle, and the one that convinced Galileo Galilei in 1610 that the planet orbited the Sun rather than the Earth. With a 60–80 mm telescope at 50–100×, the phase is already perfectly evident.

From mid-August onward the crescent begins to thin while the apparent disk grows, heading toward inferior conjunction on October 24. This is the right moment to start a series of repeated observations: photographing or sketching Venus once a week from now through October documents the entire transition from quarter phase to thin crescent. It's one of the most rewarding and least demanding observing projects an amateur astronomer can set up.

August 28 — Near-total partial lunar eclipse

The month closes as it opened, with a major event. In the late hours of the night between August 27 and 28 the Full Moon passes through Earth's shadow cone, producing an extremely deep partial eclipse, a hair's breadth from totality.

• Penumbral entry: around 03:23 CEST — the dimming is initially hard to perceive by eye.
• Start of the partial phase: 04:33 — the lunar limb enters the true shadow.
• Maximum: around 06:18.
• Shadow exit: 07:51, not observable from Italy.

The umbral magnitude reaches 0.93: Earth's shadow covers about 93% of the lunar diameter, and considering the disk's surface area, about 96% of the Moon ends up immersed in shadow. Very little is missing for totality. The shadowed portion may take on an orange or coppery tone, caused by sunlight filtered and bent through Earth's atmosphere — the same mechanism that produces "blood moons" during total eclipses, though here muted by the presence of a thin, directly-lit rim that, by contrast, tends to mask the colour.

The constraint, from Italy, is the Moon setting. At the start of the partial phase the Moon sits about 19° above the southwestern horizon (central Italy coordinates), but by the time of maximum it's already very close to the western horizon and sets shortly after, around 06:37. As with the solar eclipse on the 12th, you need a completely unobstructed western horizon: plains, west-facing coastlines, elevated vantage points. The eclipsed Moon sits in the constellation Aquarius, with Fomalhaut lower down and Saturn in Pisces as a naked-eye reference.

For photography, the low altitude is both a problem (atmospheric turbulence and extinction) and an opportunity: an eclipsed Moon just a few degrees above the horizon, framed alongside a landscape element, produces striking images that would be impossible from the zenith. A 300–600 mm telephoto or short-focal-length telescope, plus an advance site visit to pin down the exact azimuth of moonset.

August deep-sky: the Milky Way, the Summer Triangle, and Andromeda's return

Scheduled events aside, August is an excellent month for deep-sky. Nights have lengthened compared to July, astronomical darkness now spans several hours, and the window around the New Moon of the 12th — roughly August 7 to 17 — offers the month's best conditions. Compared to July, the galactic core in Sagittarius culminates earlier, freeing up the second half of the night for autumn targets rising again in the east.

• Summer Milky Way — Sagittarius, Scutum, Aquila — Still at its peak in the early hours of the night, with the galactic core on the meridian shortly after twilight. From northern Italian latitudes, M8 (the Lagoon Nebula) and M20 (the Trifid Nebula) culminate low (about 18°–22°) and require a clear southern horizon; narrowband H-alpha filters compensate well for atmospheric extinction. For wide-angle work (≤50 mm), the evenings of the first ten days are the last with the core in a genuinely favourable position.
• M11 (the Wild Duck Cluster) — In Scutum, on the edge of the Milky Way: one of the richest open clusters in the sky, resolving into hundreds of stars across a field of about 14' with an 80–100 mm telescope.
• M22 and M24 — The globular cluster M22 in Sagittarius is among the richest in the sky, unfairly less celebrated than M13; M24, the Sagittarius Star Cloud, is best appreciated at low magnification and wide field. Both well placed in August.
• The Summer Triangle — M57, M27, Albireo — Vega, Deneb and Altair sit nearly at the zenith during the central hours: the ideal position, with minimal atmospheric extinction. The Ring Nebula (M57) in Lyra and the Dumbbell Nebula (M27) in Vulpecula are classic targets for any aperture; Albireo in Cygnus remains the most photogenic double star in the northern sky for its gold-and-blue contrast.
• M31 (the Andromeda Galaxy) — Back in the spotlight. In the second half of the night it climbs ever higher in the east, signalling the shift toward the autumn sky. It's time to resume integration sessions on this target after months of being too low during summer.
• The Double Cluster in Perseus (NGC 869 and NGC 884) — Rises in the second half of the night, in the same region the Perseids radiate from. Perfect in binoculars or a wide-field telescope, a great way to fill the gaps between meteors during the 12–13 vigil.
• M13 (Hercules) — Still well placed in the early evening, ideal for multi-night integration with an apochromatic refractor before it sinks toward the west.

Strategy for a typical night: open with M13 and the Lyra targets as the sky darkens, shift to Sagittarius and Scutum once the galactic core reaches the meridian, and close the night on Andromeda and the Double Cluster as they rise in the east. Three "seasons" of sky in a single night: it's one of the qualities that makes August the most complete month of the year for visual observing.

Mistakes to avoid

August 2026 is the month enthusiasts have been waiting for: a single day, the 12th, lining up a planetary parade at dawn, the first total solar eclipse in continental Europe since 1999 at sunset, and the Perseids' peak under a completely moonless sky the following night. Framing it all, comet 10P/Tempel at perihelion to open the month, Venus at greatest elongation around mid-August, and a near-total lunar eclipse to close it.

The advice that matters more than any other is deceptively simple and routinely ignored: scout your observing sites now, not on the day itself. Both the eclipse on the 12th and the one on the 28th hinge on a few degrees of horizon, and the difference between seeing and not seeing often comes down to a few hundred metres of repositioning. The maps exist, and so does the time to use them. After that, all that's left is the sky, the reclining chair, and the twenty best nights of the year.