Skywatchers in the northeastern United States, eastern Canada, and parts of Europe are eagerly anticipating a rare astronomical event this spring. On the morning of Saturday, March 29th, 2025, a partial solar eclipse will grace the sky, coinciding with a spectacular “double sunrise.”
Here is all you need to know about the partial solar eclipse, including where to watch, what to expect, and how to safely observe it.
When is the Partial Solar Eclipse in 2025?
The first and only solar eclipse of 2025 will occur on March 29th, starting at 8:50am GMT (4:50am EDT) and ending at 12:43 PM GMT (8:43am EDT). The maximum solar eclipse will take place at 10:47 AM GMT (6:47AM EDT).
In the US, the solar eclipse will begin at 6:13 AM EDT and end at 7:17am EDT, with the exact times varying based on location. The most dramatic views and longest duration of the eclipse, with 85% of the sun obscured, will be experienced in some areas.
In England, the solar eclipse will begin in London at 9:56am GMT, reach its peak at 11:03 AM, and end at 12:00 PM GMT. The extent of the eclipse may vary slightly depending on location, with Scotland witnessing over 40% obscuration in cities like Glasgow.
Where to Watch the Partial Solar Eclipse?
This partial solar eclipse will be visible across a wide area of the Northern Hemisphere, including the Northeastern United States, Eastern Canada, most of Europe, and northwest Africa.
Fourteen US states, including Washington DC, will witness a partial solar eclipse, with Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, Vermont, Virginia, and West Virginia among them.
The point of greatest obscuration will occur in Nunavique, Quebec, where 94% of the sun will be hidden at the peak of the solar eclipse.
What is a Partial Solar Eclipse?
A partial solar eclipse occurs when the moon passes between the Earth and the Sun but does not fully block the Sun. Instead, it covers only a portion of the solar disk, creating the appearance of the moon taking a bite out of the sun.
This results in a deep but incomplete solar eclipse, with the sun taking on a crescent shape. Unlike a total solar eclipse, where the sky goes completely dark, daylight remains during a partial solar eclipse, albeit with a dim and eerie quality.
What is a Double Sunrise?
“Double Sunrise” is a rare and stunning visual effect that can occur when a solar eclipse coincides with the rising sun.
From parts of eastern Canada and northeastern United States, the sun may appear as a crescent on the horizon during a partial solar eclipse. The tip of the crescent moon, often called the “devil’s horn,” may also be visible, giving the illusion of two separate sunrises.
Maine and parts of Quebec, Canada, offer the best chance to witness this phenomenon.
After the double sunrise, the sun will continue to rise as a thin arc in the sky.
How to Safely Watch a Partial Solar Eclipse
Unlike a total solar eclipse, partial solar eclipses should never be viewed directly with the naked eye, even when most of the sun is covered. Even small slivers of the sun can cause permanent eye damage.
If possible, obtain eclipse glasses that are certified to ISO 12312-2 international safety standards.
If using binoculars, cameras, or telescopes, ensure they are equipped with a solar filter on the front end (not the eyepiece).
If you are unable to find glasses or filters, indirect viewing methods are still possible. By creating a small hole (1-2mm) in a card, you can project sunlight onto a flat surface to observe the solar eclipse safely.
Weather plays a significant role in eclipse visibility. A clear sky offers the best viewing conditions, but even in cloudy weather, you may still experience a dimming effect as the moon passes in front of the sun.
How to Watch the Solar Eclipse 2025 Online
If you are unable to witness the partial solar eclipse in person, don’t worry. You can watch it online. The Royal Observatory Greenwich in the UK will be live streaming the event starting at 10am GMT.
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Source: www.sciencefocus.com
