Astronomy Picture of the Day ·
A Sun Pillar
The Astronomy Picture of the Day for July 6, 1999 is “A Sun Pillar,” an image. It is credited to Credit: Grant W. Goodge, NOAA Photo Collection, US Dept. of Commerce. The original explanation runs about 99 words.
From the explanation
“Have you ever seen a sun pillar ? When the air is cold and the Sun is rising or setting , falling ice crystals can reflect sunlight and create an unusual column of light.”
— APOD editors, July 6, 1999
Read the full explanation on science.nasa.gov
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At a glance
- Date
- July 6, 1999
- Type
- Image
- Credit
- Credit: Grant W. Goodge, NOAA Photo Collection, US Dept. of Commerce
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 99 words