Astronomy Picture of the Day · June 15, 1999

The Sun Oscillates

The Astronomy Picture of the Day for June 15, 1999 is “The Sun Oscillates,” an image. It is credited to Credit: GONG, NOAO. The original explanation runs about 97 words.

From the explanation

“Our Sun is in a continual state of oscillation. Large patches of the Sun vibrate in and out, back and forth, even as the Sun rotates .”

— APOD editors, June 15, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: June 15, 1999
Type: Image
Credit: Credit: GONG, NOAO
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 97 words

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

Topics in this entry

The Sun

Topics are matched from words in the title and explanation.

On this day: June 15 in other years

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Source

Astronomy Picture of the Day, June 15, 1999 — science.nasa.gov/image-article/apod-1999-june-15-the-sun-oscillates

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.