July Sky Event: Delta Aquariids and Alpha Capricornids Peak This Week

Stargazers across the United States will have a chance to witness a celestial double feature this week as two significant meteor showers, the Southern Delta Aquariids and Alpha Capricornids, reach their peak activity on Thursday, July 30, 2026. The American Meteor Society (AMS) forecasts that these events will provide a dazzling display of shooting stars against the night sky.

The Alpha Capricornids, a shower known for producing occasional bright fireballs, began its annual run on July 7 and will continue until August 13. While typically producing around three meteors per hour, their slow, deliberate movement across the sky and sudden bursts of brightness make them notable. These meteors appear to originate from the vicinity of Alpha Capricorni, a star easily visible to the naked eye. This radiant point in the sky becomes observable in the eastern horizon around 8 p.m. Local Daylight Time, though optimal viewing is limited in the early evening due to the horizon's obstruction.

Adding to the astronomical excitement, the Southern Delta Aquariids shower commenced on July 19 and is expected to grace the skies until August 13. Astronomers advise observers to look towards the shower's radiant, located in the southwestern part of the constellation Aquarius, west of the star Delta Aquarii. This point is roughly 40 degrees east of the Alpha Capricornids' radiant. While these meteors also rise around 10 p.m. LDT, they are best viewed when they reach their highest point in the sky, approximately 3 a.m. LDT. A key distinction between the two showers is their speed; Southern Delta Aquariids are considerably faster, with individual meteors often visible for less than a second, according to AMS.

Late July Skies Offer Multiple Meteor Displays

The latter half of July is a prime time for meteor shower enthusiasts. In addition to the two showers peaking this week, the highly anticipated Perseid meteor shower, often hailed as the year's most impressive, also began its annual performance on July 17 and will last through the end of the month. The Perseids are renowned for their swift, bright meteors that leave long, colorful trails as they burn up in the atmosphere, as noted by NASA. Under optimal conditions—a dark, clear sky—the Perseids can produce between 50 to 100 meteors per hour.

However, visibility for all these celestial events may be affected by the bright light of the Buck Moon, which reaches its full phase on Wednesday, July 29. The intense moonlight can wash out fainter meteors, making it harder to spot the shooting stars. For those hoping to catch the Alpha Capricornids, experts recommend waiting until later in the night when the radiant is higher in the sky and the moon has set. The best viewing times for the Southern Delta Aquariids are in the early morning hours, particularly around 3 a.m., when hourly rates can reach an estimated five to ten meteors. It is worth noting that meteor shower activity can vary significantly based on atmospheric conditions, moonlight intensity, and geographic location. In the Southern Hemisphere, where the radiant of the Southern Delta Aquariids is positioned overhead, observers might see between 10 to 20 meteors per hour, though these figures are also subject to environmental factors.

This convergence of meteor showers provides a fantastic opportunity for both seasoned astronomers and casual observers to connect with the cosmos. With a bit of patience and a keen eye, the late July sky promises a memorable display of natural fireworks. Planning your viewing session around the moonset and the elevation of the meteor shower radiants can significantly enhance the experience.