Dysnomia is the only known moon of the dwarf planet Eris. It was discovered by a team led by the astronomer Mike Brown, using the Keck telescope in Hawaii and its laser-guided adaptive optics system, which allowed astronomers to see the faint satellite near the bright planet. Observing its orbit made it possible to calculate the mass of Eris, showing that Eris is more massive than Pluto. The moon was named for the daughter of the Greek goddess Eris, the spirit of lawlessness, and it is a faint companion at a very great distance from the Sun.
Before and after
- 12 August 2005Launch of Mars Reconnaissance Orbiter
- 17 August 2005Release of Joomla
- 22 August 2005Discovery of Gliese 581 b
- from 29 August 2005 to 30 May 2017Premiere of Prison Break
- 10 September 2005Discovery of Dysnomia
- from 13 September 2005 to 19 November 2020Premiere of Supernatural
- from 13 September 2005 to 28 March 2017Premiere of Bones
- 15 September 2005Launch of RT
- from 19 September 2005 to 31 March 2014Premiere of How I Met Your Mother
More in Universe & space
- 22 June 1978Discovery of Charon
- 20 January 1986Discovery of Ophelia
- 19 February 1986Launch of Mir
- 1998Supernovae show that cosmic expansion is accelerating
- 20 November 1998Launch of International Space Station
- 10 April 2019The first image of a black hole
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 21st century.