Astronomy Picture of the Day · August 18, 1999

Sun Block

The Astronomy Picture of the Day for August 18, 1999 is “Sun Block,” an image. The picture is copyrighted by its creator (Credit & Copyright: Dominik Pasternak). The original explanation runs about 152 words.

From the explanation

“During a total solar eclipse, Earth’s moon blocks the sun – almost exactly. While the sun is about 400 times wider than the moon, it is also about 400 times farther away and each appears to be half a degree or so in diameter.”

— APOD editors, August 18, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: August 18, 1999
Type: Image
Credit: Credit & Copyright: Dominik Pasternak
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 152 words

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

Topics in this entry

The Sun Eclipses

Topics are matched from words in the title and explanation.

On this day: August 18 in other years

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Source

Astronomy Picture of the Day, August 18, 1999 — science.nasa.gov/image-article/apod-1999-august-18-sun-block

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.