Astronomy Picture of the Day · February 4, 1999

Spiral Sunspot

The Astronomy Picture of the Day for February 4, 1999 is “Spiral Sunspot,” an image. The picture is copyrighted by its creator (Credit & Copyright: AURA/ NOAO). The original explanation runs about 124 words.

From the explanation

“Spiral galaxies abound in the universe, but spiral sunspots are definitely an unusual twist. This distinctive spiral-shaped sunspot caught the attention of National Solar Observatory astronomers and was photographed on February 19, 1982 with the Vacuum Solar Telescope on Kitt Peak.”

— APOD editors, February 4, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: February 4, 1999
Type: Image
Credit: Credit & Copyright: AURA/ NOAO
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 124 words

All of February 1999 → · 1999 by month → · Full archive since 1995 →

Topics in this entry

The Sun Galaxies

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On this day: February 4 in other years

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Source

Astronomy Picture of the Day, February 4, 1999 — science.nasa.gov/image-article/apod-1999-february-04-spiral-sunspot

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.