Witnessing a solar eclipse is a breathtaking experience, as the Moon passes between the Earth and the Sun, casting a shadow and transforming the sky into a stunning spectacle.
Northern Ireland can enjoy a deep partial eclipse with the moon set to obscure 90% to 96% of the sun. This event commenced shortly before 18:00 BST, with its peak occurring between 19:02 and 19:16.
Since the sun is positioned very low on the west-northwest horizon, it’s essential for observers to have an unobstructed view to witness the final moments before sunset.
However, it’s crucial to remember that looking directly at the Sun can cause severe eye damage.
To enjoy the celestial event without risking your eyesight, a pinhole projector is an excellent solution. This simple device allows you to safely view the eclipse while adding a fun DIY element to your day.
What You’ll Need
Gather the following items, most of which you likely have at home:
- A cardboard box (like a cereal box)
- A piece of white paper
- Tin foil
- A pen
- Sellotape (Duct Tape)
- Drawing pins
- Scissors

Step-by-Step Guide to Creating Your Pinhole Projector
- Prepare the White Paper
Take your cereal box and trace its bottom end onto a piece of white paper. This will serve as the screen for viewing the eclipse.

- Attach the Screen
Cut out the traced shape and tape it to the bottom of the box’s interior. This will create a reflective surface for the projected image of the Sun.

- Create Viewing Holes
Cut out small squares on the top left and top right of the box lid, ensuring the middle section remains sealed.

- Apply Tin Foil
Cover the left top corner of the box with tin foil, securing it tightly with tape. Be cautious, as the foil is delicate; ensure it’s smooth and taut.

- Pinhole Creation
Using a drawing pin, poke a tiny hole in the centre of the tin foil. Keep the hole small; this will allow sunlight to pass through while maintaining a clear image.

Final Touches
Your eclipse viewer/projector is now ready! Feel free to decorate the exterior of the box or add signage for a personal touch.
How to Use?
To use a cardboard box solar eclipse pinhole viewer, stand with your back to the Sun, align the pinhole end toward the sunlight, and look through the separate viewing hole at the projected image inside.
Find a quiet, open space to set up your projector, ensuring you have a clear view of the eclipse. With your homemade pinhole projector, you’re now equipped to safely enjoy the wonder of a solar eclipse.

