The sky of April 2026 holds three main astronomical phenomena. Meteor shower Líridas peaks between April 21st and 22nd. Comet C/2025 R3 may appear from the 17th, with perihelion on the 20th. Meteor shower Eta Aquáridas begins on the 19th and gains strength in May.
These events occur in periods with Lua favorable for observation. Líridas originates from the debris of comet Thatcher. As Eta Aquáridas comes from the remains of comet Halley. Comet C/2025 R3 was discovered in September 2025 by the Pan-STARRS telescope.
Meteor shower Líridas gains strength at the end of April
Rain activity Líridas begins around April 15th. The moment of greatest intensity occurs on the night of April 21st to 22nd. Observadores can record up to 15 meteors per hour in ideal conditions.
The radiant is towards the east, close to the star Vega, in the constellation Lira. No Brasil, the phenomenon appears with lower intensity than in the northern hemisphere, but still allows good viewing. Lua’s phase between new and waxing on the 22nd helps reduce interference from lunar light.
Many meteors cross the sky at high speeds. Alguns They leave brief luminous trails. Observation occurs with the naked eye, without the need for special equipment in most cases.
Comet C/2025 R3 can be seen from the middle of the month
Comet C/2025 R3 approaches Sol and reaches perihelion on April 20th. The position is in the constellation Peixes, just below Grande Quadrado of Pégaso. From the 17th, the object may appear to the naked eye in the southern hemisphere, depending on the actual brightness.
The night of April 17th has Lua nova, which favors visibility in dark skies. Estimativas indicate that the comet could reach magnitude 2.5. Nesses cases, it becomes visible without the aid of instruments. Binóculos or small telescopes enhance the experience and reveal details of the tail.
The comet was discovered by the Pan-STARRS system. Astrônomos follow the brightness along the solar approach. Visibility in the southern hemisphere tends to be more favorable than in the north during this window.
- Observation direction for the comet: constellation Peixes, below Grande Quadrado of Pégaso
- Best starting period: from April 17th, with Lua new
- Recommended equipment: binoculars or small telescope for greater detail
- Key condition: dark sky, away from urban light pollution
Eta Aquáridas offers most intense activity in the southern hemisphere
Meteor shower Eta Aquáridas begins activity on April 19. The peak occurs between May 5th and 6th, outside of April, but the first few days already show movement. Essa rain can produce up to 40 meteors per hour at most.
The radiant is also located in the east direction. The intensity is greater in the Southern Hemisphere compared to Líridas. Rapid Meteoros leaves persistent tracks in some cases. The origin is in the debris of comet Halley, which completes orbit every 75 years.
Observers on Brasil have an advantage in monitoring this rain. The activity continues until the end of May, with a gradual increase in frequency.
Practical tips for observing phenomena
Choose locations away from large cities to reduce light pollution. Áreas Rural areas, beaches or open parks offer better conditions. Deite Sit on a comfortable surface and allow your eyes to adapt to the dark for about 20 minutes.
Optimal observation occurs after midnight and before dawn, when the radiant is highest. Evite the use of flashlights or cell phone screens during the session. Aplicativos astronomy like SkyView, Stellarium or Star Walk 2 help locate the radiant and identify reference stars.
- Avoid strong artificial lights nearby
- Wear warm clothes if the night is cold
- Bring a reclining chair or treadmill for extended comfort
- Record the time and direction of meteors seen, if possible
Patience is essential, as meteors do not appear continuously. Grupos of observers often report greater satisfaction when sharing the experience.
Combined phenomena expand opportunities in April
April 2026 brings together meteor showers and a comet in close sequence. Líridas offers the first highlight, followed by the approach of comet C/2025 R3. As Eta Aquáridas start soon after and continue the following month.
These events happen independently, but coincide in favorable visibility windows. Lua with little interference on key dates helps those planning observation sessions. No Brasil, the southern hemisphere especially benefits from the comet and part of Eta Aquáridas.
Amateur astronomers and the general public can follow phenomena without advanced equipment in most situations. Success depends mainly on clear skies and a dark location.