OGLE-2005-BLG-390Lb is an exoplanet located toward the centre of the Milky Way, some 20,000 light-years away, found by the gravitational microlensing method. The technique relies on a star passing in front of a more distant one, bending and magnifying the background starlight, and a planet around the foreground star leaves a short extra spike in the brightness. The discovery involved the OGLE, MOA and PLANET collaborations. The planet has a mass of only a few times that of Earth and orbits a faint red dwarf at a distance where it would be extremely cold. It was among the least massive planets known when it was announced, showing that cold, rocky or icy worlds may be common.
Before and after
- from 12 July 2006 to 14 August 20062006 Lebanon War
- 22 July 2006Construction of Emirates Stadium
- 23 July 2006Creation of Rust
- 7 August 2006Discovery of C/2006 P1
- 10 August 2006Discovery of OGLE-2005-BLG-390Lb
- 15 August 2006Release of Wikiversity
- 24 August 2006Pluto is reclassified as a dwarf planet
- 27 August 2006Release of Roblox
- 30 August 2006Death of Naguib Mahfouz
More in Universe & space
- 30 September 1975Discovery of Themisto
- 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
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.