Astronomy Picture of the Day · March 4, 1999

Ganymede Mosaic

The Astronomy Picture of the Day for March 4, 1999 is “Ganymede Mosaic,” an image. It is credited to Credit: Galileo Project, DLR, JPL, NASA. The original explanation runs about 130 words.

From the explanation

“Ganymede , one of the four Galilean moons of Jupiter, is the largest moon in the Solar System. With a diameter of 5,260 kilometers it is even larger than planets Mercury and Pluto and just over three quarters the size of Mars.”

— APOD editors, March 4, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: March 4, 1999
Type: Image
Credit: Credit: Galileo Project, DLR, JPL, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 130 words

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

Topics in this entry

Mars Jupiter

Topics are matched from words in the title and explanation.

On this day: March 4 in other years

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Source

Astronomy Picture of the Day, March 4, 1999 — science.nasa.gov/image-article/apod-1999-march-04-ganymede-mosaic

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.