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Astronomy Picture of the Day - Shadow and Rainbow
NASA ^ | 18 Jul, 2026 | Image Credit & License: Dave Loschiavo

Posted on 07/18/2026 12:35:14 PM PDT by MtnClimber

Explanation: At sunset, an alignment of rainbow and mountain shadow was captured in this remarkable snapshot. The stunning view was recorded from a fire lookout on Smith Peak in the Plumas National Forest near Portola, California on July 13. Still, near sunset it's no accident that the majestic mountain shadow seems to point to the center of the graceful rainbow arc. Due to perspective and the long line of sight the mountain shadow naturally forms a tapering triangular shape, its apex positioned at the point opposite the Sun on the horizon. Following thunderstorms in the region, the rainbow arched across the early evening sky, with its colorful and characteristic 42 degree arc formed as sunlight is refracted and reflected by the atmospheric water droplets. The geometric center of a rainbow arc lies at the antisolar point. And in this scene from the golden hour on planet Earth, that's also opposite the setting Sun along the distant horizon.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa

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1 posted on 07/18/2026 12:35:14 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 07/18/2026 12:35:41 PM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber
Pinging the APOD list

🪐 🌟 🌌 🍔

3 posted on 07/18/2026 12:35:59 PM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber
I also have a photo of a mountain Shadow cast on the horizon. I took mine while climbing Cerro Aconcagua, Argentina, and the highest peak in South America (6,967.15 meters, 22,858 ft). The photo was taken from Camp 2 on the Polish Glacier route around 16,000 ft.

Taken from just below the lower edge of this photograph.


4 posted on 07/18/2026 12:54:41 PM PDT by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

Wow.


5 posted on 07/18/2026 1:55:28 PM PDT by No name given ( Anonymous is who you’ll know me as )
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To: MtnClimber

Beautiful.


6 posted on 07/18/2026 1:55:36 PM PDT by No name given ( Anonymous is who you’ll know me as )
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To: MtnClimber

It is pointing to the land of OZ.


7 posted on 07/18/2026 3:45:40 PM PDT by minnesota_bound (Making money now. Still want much more.)
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