Astronomy Picture of the Day · June 20, 2000

Ganymede: The Largest Moon in the Solar System

The Astronomy Picture of the Day for June 20, 2000 is “Ganymede: The Largest Moon in the Solar System,” an image. It is credited to Credit: Galileo Project , JPL , NASA. The original explanation runs about 115 words.

From the explanation

“If Ganymede orbited the Sun, it would be considered a planet. The reason is that Jupiter ‘s moon Ganymede is not only the largest moon in the Solar System , it is larger than planets Mercury and Pluto .”

— APOD editors, June 20, 2000

Read the full explanation on science.nasa.gov

At a glance

Date: June 20, 2000
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 115 words

All of June 2000 → · 2000 by month → · Full archive since 1995 →

Topics in this entry

The Moon The Sun Jupiter

Topics are matched from words in the title and explanation.

On this day: June 20 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Astronomy Picture of the Day, June 20, 2000 — science.nasa.gov/image-article/apod-2000-june-20-ganymede-the-largest-moon-in-the-solar-system

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.