Astronomy Picture of the Day · August 17, 1999

A Crescent Sunrise

The Astronomy Picture of the Day for August 17, 1999 is “A Crescent Sunrise,” an image. The picture is copyrighted by its creator (Credit & Copyright: Thomas Collin). The original explanation runs about 128 words.

From the explanation

“Normally, the Moon shows phases, but the Sun does not. The reason is founded in the fact that the Moon shines only by reflected sunlight.”

— APOD editors, August 17, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: August 17, 1999
Type: Image
Credit: Credit & Copyright: Thomas Collin
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 128 words

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

Topics in this entry

The Moon The Sun Eclipses

Topics are matched from words in the title and explanation.

On this day: August 17 in other years

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Source

Astronomy Picture of the Day, August 17, 1999 — science.nasa.gov/image-article/apod-1999-august-17-a-crescent-sunrise

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.