This rare event is a combination of March’s full "Worm Moon" and a total lunar eclipse, where the moon will take on a deep red hue as it moves through Earth’s shadow. Here’s everything you need to know about when and how to watch this stunning phenomenon.

Read more: When to See the Full Moon in March 2025? What is the Blood Worm Moon?

Rare ‘Blood Worm Moon’ Lunar Eclipse
Rare ‘Blood Worm Moon’ Lunar Eclipse

When to Watch the Blood Worm Moon

The total lunar eclipse will occur overnight, beginning on Thursday, March 13, 2025, and continuing into the early hours of Friday, March 14, 2025. The eclipse will last approximately six hours, with totality—when the moon is entirely covered by Earth’s shadow—lasting around 65 minutes. Below are the key eclipse phases:

  • Partial Eclipse Begins: 11:57 p.m. EDT (March 13)

  • Total Eclipse Begins: 2:26 a.m. EDT (March 14)

  • Maximum Eclipse: 2:58 a.m. EDT (March 14)

  • Total Eclipse Ends: 3:31 a.m. EDT (March 14)

  • Partial Eclipse Ends: 6:00 a.m. EDT (March 14)

For those in different time zones, totality begins at:

  • 1:26 a.m. CDT

  • 12:26 a.m. MDT

  • 11:26 p.m. PDT (March 13)

This will be the first total lunar eclipse visible across the entire United States since 2022, making it a must-watch event.

Where to Watch in the US

The Blood Worm Moon will be visible across North America, including all 48 contiguous U.S. states. For the best viewing experience, head to a location with minimal light pollution, such as a rural area, a park, or an observatory. Urban skywatchers can still see the eclipse, but city lights may reduce visibility.

Best Viewing Conditions

To fully enjoy the Blood Worm Moon, clear skies are essential. Weather conditions can vary, so check your local forecast as the date approaches. Some areas might experience cloud cover that could obstruct the view. The National Weather Service suggests that states in the Midwest and along the West Coast will likely have the clearest skies for optimal viewing.

What is the “Worm Moon”?

March’s full moon is traditionally called the Worm Moon, a name derived from Native American and colonial traditions. It signifies the time when earthworms emerge from the thawing ground, marking the transition from winter to spring. This event signals the return of birds like robins, which feed on these worms, making it a true seasonal indicator.

Different Native American tribes have their own names for March’s full moon, including:

  • Crow Moon (due to crows returning as spring arrives)

  • Sap Moon (referencing the time when maple trees begin producing sap)

  • Sugar Moon (signaling the start of syrup season)

Why Does the Moon Appear Red?

During a total lunar eclipse, Earth moves directly between the sun and the moon, causing the moon to pass through Earth's shadow. However, instead of disappearing, the moon glows in shades of red and orange. This happens due to Rayleigh scattering, the same effect that makes sunsets appear reddish. As sunlight passes through Earth's atmosphere, shorter wavelengths (blue light) scatter, while longer red wavelengths bend and illuminate the moon’s surface.

Factors influencing the eclipse’s color intensity include:

  • Atmospheric conditions (dust and pollution can deepen the red hue)

  • Cloud cover (clear skies enhance visibility and color richness)

  • How deep the moon moves into Earth’s umbra

How to Capture the Blood Worm Moon

Photographers looking to document this rare event should consider these tips:

  1. Use a Tripod – This stabilizes your camera, preventing blurry images.

  2. Choose the Right Lens – A telephoto lens (200mm or higher) captures detailed lunar features.

  3. Adjust Camera Settings – Use a low ISO (100-200) for sharp images, a wide aperture (f/2.8 to f/5.6), and adjust exposure based on the moon’s brightness.

  4. Use Manual Focus – Autofocus may struggle in low light; manual adjustments will ensure clarity.

  5. Experiment with Exposure – During totality, the moon is much dimmer, requiring longer exposures (several seconds).

How to Watch Online

If weather conditions or location prevent you from seeing the eclipse, several observatories and space agencies will stream the event live. Websites like NASA TV, The Virtual Telescope Project, and Time and Date will provide real-time coverage.

Final Thoughts

The Blood Worm Moon is a must-see event for astronomy enthusiasts and casual stargazers alike. Whether you view it in person or online, this spectacular lunar eclipse offers a unique opportunity to witness one of nature’s most stunning phenomena. Mark your calendars, find a great viewing spot, and prepare to be amazed by this celestial wonder!

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