Total eclipse of 2025: Blood supermoon captivates with over 80 minutes in the sky in September
A celestial spectacle will light up the sky on the night of September 7 to 8, 2025, when a total lunar eclipse, known as a blood supermoon, will offer 82 minutes of totality. The phenomenon, combining the Moon’s proximity to Earth and a reddish hue, will occur between 12:28 AM and 5:55 PM Brasília time. Although not directly visible in Brazil due to its geographical position, the event can be followed through live streams on platforms like YouTube and TimeandDate.com. Astronomers highlight the rarity of the event, which blends science and beauty, attracting millions of viewers in regions such as Europe, Africa, and Oceania. The phenomenon occurs due to the perfect alignment of the Sun, Earth, and Moon, casting a shadow that tints the satellite red.
The 2025 total lunar eclipse will be the longest of the year, with the Moon at perigee, about 356,000 km from Earth, appearing up to 14% larger and 30% brighter. The reddish hue results from the scattering of sunlight in Earth’s atmosphere, creating a striking visual. For Brazilians, technology will be key to experiencing the event, with online streams offering high-resolution images.
- Duration of totality: 82 minutes, from 2:30 PM to 3:52 PM Brasília time.
- Visible regions: Europe, Africa, eastern Australia, and New Zealand.
- Streaming platforms: YouTube, NASA, ESA, TimeandDate.com.
- Visual impact: Reddish Moon due to Rayleigh scattering.
The blood supermoon combines two rare events, making it a significant astronomical milestone. The phenomenon not only captivates but also provides valuable scientific data about Earth’s atmosphere.
Rare phenomenon and its science
The September 2025 total lunar eclipse stands out for combining a supermoon with an exceptional 82-minute duration. The Moon, positioned about 356,000 km from Earth, will be at perigee, the closest point in its elliptical orbit. This makes the satellite appear significantly larger and brighter in the sky. The reddish hue, characteristic of a “blood moon,” occurs due to Rayleigh scattering, where sunlight passes through Earth’s atmosphere, filtering out blue tones and emphasizing reds.
The intensity of the color may vary depending on atmospheric conditions, such as volcanic dust or pollution. In 2025, about 36% of the Moon’s diameter will be immersed in the umbra, the darkest part of Earth’s shadow, potentially intensifying the red hue. Astronomers note that each eclipse is unique, offering a chance to study the interaction between sunlight and Earth’s atmosphere.
- Optical process: Rayleigh scattering filters blue tones, highlighting red.
- Variation factors: Dust, pollution, or clouds affect color intensity.
- Eclipse depth: 36% of the Moon’s diameter in the umbra.
- Scientific relevance: Study of Earth’s atmosphere through refracted light.
The phenomenon also allows for the observation of stars and constellations, such as Leo and Regulus, which become more visible due to the reduced lunar brightness during totality.
How to watch in Brazil
Although Brazil is not in the direct visibility zone, Brazilians can follow the eclipse through live streams. Platforms like YouTube, NASA, ESA, and TimeandDate.com will offer real-time coverage with images captured by professional telescopes. Brazil’s National Observatory and other institutes plan virtual events with scientific explanations, making the phenomenon accessible to all.
For an immersive experience, it’s recommended to start watching about an hour before totality, scheduled for 2:30 PM Brasília time. A stable internet connection is essential for high-quality streams. Some institutions will also share educational content, such as lectures and live analyses.
- Recommended platforms: YouTube, NASA, ESA, TimeandDate.com.
- Ideal time: Start watching at 1:30 PM Brasília time.
- Practical tip: Use headphones to follow expert narrations.
- Virtual events: National Observatory and astronomy channels in Brazil.
Technology plays a crucial role, democratizing access to celestial events and connecting enthusiasts worldwide.
Cultural and historical significance
The blood supermoon transcends science, carrying cultural meanings in various traditions. In ancient cultures, the phenomenon was often interpreted as an omen or supernatural event, linked to significant changes. Today, the “blood moon” inspires modern practices, such as collective meditations and reflections during the event.
The 2025 eclipse also reflects the precision of celestial movements, captivating both scientists and the general public. The combination of a supermoon with a total eclipse is relatively rare, occurring roughly every two to three years, which enhances its cultural and scientific significance.
- Ancient traditions: Blood moon seen as an omen or mystical event.
- Contemporary practices: Meditations and virtual events during the eclipse.
- Phenomenon frequency: Total eclipses with supermoons occur every 2-3 years.
- Global impact: Connects millions of viewers through online streams.
The 2025 event promises to unite people across continents, reinforcing humanity’s fascination with the cosmos.
What to expect from the spectacle
The 2025 total lunar eclipse will have distinct phases, starting with the penumbra at 12:28 AM, followed by the partial phase at 1:27 PM, and reaching totality between 2:30 PM and 3:52 PM Brasília time. During these 82 minutes, the Moon will be fully covered by the umbra, displaying shades ranging from bright red to a darker tone, depending on atmospheric conditions.
In regions like Cairo, Egypt, the eclipse will be a nighttime spectacle, while in Perth, Australia, it will occur in the early morning hours. Visibility depends on clear skies and low light pollution, maximizing the experience for direct observers.
- Eclipse phases: Penumbra, partial, and totality.
- Key times: Totality from 2:30 PM to 3:52 PM Brasília time.
- Ideal conditions: Clear skies and unobstructed horizon.
- Color variation: Red hues influenced by dust and pollution.
The extended duration of totality makes this event one of the most striking in recent years, according to NASA.
Upcoming astronomical events
Those who miss the September 2025 eclipse will have another chance soon. A total lunar eclipse is scheduled for March 3, 2026, with 65 minutes of totality, visible across Brazil and the Americas. This event can be observed with the naked eye, requiring no special equipment, making it accessible to all.
Additionally, a partial solar eclipse is set for September 21, 2025, but it will only be visible in remote regions like southern Australia and Antarctica. For Brazilians, the 2026 eclipse will be the next major opportunity to witness a celestial event directly.
- 2026 lunar eclipse: March 3, visible in Brazil, 65 minutes of totality.
- 2025 solar eclipse: September 21, visible in remote regions.
- Observation in Brazil: Naked eye in 2026, no equipment needed.
- Planning: Check TimeandDate.com for local times.
Astronomy continues to spark interest, with events like the 2025 eclipse strengthening the connection between science and emotion.
Technology and science in focus
The 2025 total lunar eclipse will also have scientific significance. Astronomers will use the event to study Earth’s atmosphere, as the Moon’s hue reflects conditions like volcanic dust or pollutants. Space missions, such as lunar probes, may collect data on the Moon’s surface under shadow conditions, contributing to future explorations.
In Brazil, science teachers plan to use the streams to engage students, promoting scientific education. Schools in visible regions, like Europe and Africa, will organize observation events, while Brazil relies on digital platforms to spread knowledge.
- Atmospheric studies: Moon’s hue reflects Earth’s atmospheric conditions.
- Space missions: Data collected for future lunar explorations.
- Scientific education: Streams used in schools and universities.
- Global engagement: Virtual events connect astronomers and enthusiasts.
The 2025 phenomenon highlights the role of technology in popularizing astronomy, blending science and accessibility.
