Last Surya Grahan of 2025: It will occur on September 21, marking one of the year’s most significant celestial events. This partial solar eclipse 2025 will primarily be visible across the Southern Hemisphere, while countries like India, Pakistan, Nepal, and Sri Lanka will miss the phenomenon.
What Happens During a Partial Solar Eclipse?
A partial solar eclipse occurs when the Moon passes between the Earth and the Sun but only covers part of the Sun’s disk. Unlike a total eclipse, the Sun is not fully obscured. Instead, it takes on a crescent shape as viewed from specific locations.
This happens because the Moon’s orbital plane is slightly tilted compared to Earth’s orbit around the Sun. As a result, the Moon’s central shadow (umbra) often misses Earth, while the outer shadow (penumbra) creates a partial eclipse.
Solar Eclipse 2025: Date, Time and Maximum Phase
According to astronomical data, the September 21, 2025 solar eclipse will follow this sequence (UTC):
| Event | Date & Timings |
| Solar Eclipse (Surya Grahan) | September 21 |
| Partial Eclipse Begins | 17:29:43 |
| Maximum Eclipse | 19:41:59 |
| Partial Eclipse Ends | 21:53:45 |
For many parts of the Southern Hemisphere, this will coincide with sunrise, offering a unique chance to witness the phenomenon.
Visibility of Surya Grahan 2025
The September 21 Surya Grahan will be visible from:
- New Zealand: Dunedin will experience up to 72% obscuration of the Sun.
- Eastern Australia: Coastal regions will see partial coverage.
- South Pacific Islands: Fiji, Samoa, and surrounding areas will witness varying levels of obscuration.
- Antarctica: Dramatic sunrise views with significant Sun coverage.
The eclipse will not be visible in the Northern Hemisphere, including India, Pakistan, Nepal, Sri Lanka, Afghanistan, North America, and most of South America. For viewers in these regions, the Sun will appear completely unobscured.
Solar Eclipse 2025: Scientific Significance
The Surya Grahan 2025 is more than a visual spectacle. It highlights:
- The precise orbital alignment of the Earth, Moon, and Sun.
- The formation of penumbral shadows creating the crescent Sun effect.
- A rare chance to study solar limb darkening and variations in light intensity.
- Its timing near the September equinox, showing how Earth’s tilt influences solar visibility.
- Astronomers and skywatchers see it as a natural demonstration of orbital mechanics and celestial geometry.
No, The September 21, 2025 solar eclipse will not be visible in India. The event is limited to the Southern Hemisphere, with regions like New Zealand, Australia, and the South Pacific witnessing the celestial alignment. However, enthusiasts in India and nearby countries can observe the Surya Grahan 2025 via live streaming or astronomical broadcasts.
Guidelines for Watching a Solar Eclipse
Viewing a solar eclipse requires strict safety precautions:
- Always use certified solar eclipse glasses or telescopes with solar filters.
- Never look directly at the Sun without protection.
- Avoid using cameras or binoculars without proper solar filters.
- Photograph only with protective solar filters in place.
- Even during a partial eclipse, direct exposure can cause irreversible eye damage.
The last Surya Grahan of 2025 on September 21 will be a spectacular partial solar eclipse for the Southern Hemisphere. While India and most of the Northern Hemisphere will miss the event, the eclipse remains a scientifically valuable opportunity to understand celestial alignments and orbital mechanics. For Indian viewers, digital streams will be the only safe way to experience this rare astronomical phenomenon.
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