Image: Moons vs time

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Description: Plot of the number of moons discovered in a year vs. the year number, up to 2019, using the discovery years given in wikipedia's list of natural satellites.The first peak at 1980 was caused by Voyager 1; the second at 1986 caused by Voyager 2. The peaks in recent times is caused by improvements to ground- and Earth orbit-based optical telescopes. The drop off after 2007 is probably due to discoveries that have been announced with considerable delay (the 20 objects announced in 2019 were first observed in 2004).
Author: Renerpho, based on previous version by Mike Peel (mikepeel.net)
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes

Image usage

The following page links to this image:

List of natural satellites

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