Astronomy Picture of the Day · August 7, 1999

Ida and Dactyl: Asteroid and Moon

The Astronomy Picture of the Day for August 7, 1999 is “Ida and Dactyl: Asteroid and Moon,” an image. It is credited to Credit: Galileo Project, JPL, NASA. The original explanation runs about 108 words.

From the explanation

“This asteroid has a moon ! The robot spacecraft Galileo currently exploring the Jovian system , encountered and photographed two asteroids during its long journey to Jupiter .”

— APOD editors, August 7, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: August 7, 1999
Type: Image
Credit: Credit: Galileo Project, JPL, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 108 words

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

Topics in this entry

The Moon Jupiter Asteroids

Topics are matched from words in the title and explanation.

On this day: August 7 in other years

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Source

Astronomy Picture of the Day, August 7, 1999 — science.nasa.gov/image-article/apod-1999-august-07-ida-and-dactyl-asteroid-and-moon

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.