Sea and Sky Glows over the Oregon Coast

APOD: 2022 September 4 - Sea and Sky Glows over the Oregon Coast

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2022 September 4
The featured image shows rock outcrops off the coast of
Oregon, USA, with blue bioluminescence in the water and the central
band of our Milky Way galaxy in the sky.
Please see the explanation for more detailed information.

Sea and Sky Glows over the Oregon Coast
Image Credit & Copyright: Rudy Montoya

Explanation: Every step caused the sand to light up blue. That glow was bioluminescence -- a blue radiance that also lights the surf in this surreal scene captured in mid-2018 at Meyer's Creek Beach in Oregon, USA. Volcanic stacks dot the foreground sea, while a thin fog layer scatters light on the horizon. The rays of light spreading from the left horizon were created by car headlights on the Oregon Coast Highway (US 101), while the orange light on the right horizon emanates from a fishing boat. Visible far in the distance is the band of our Milky Way Galaxy, appearing to rise from a dark rocky outcrop. Sixteen images were added together to bring up the background Milky Way and to reduce noise.

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