Surveying the sky in search for new planets
![](https://ec.europa.eu/newsroom/repository/picture/2015-46/fotolia_61030993_subscription_s_11142.jpg)
date: 09/11/2015
Project: Optical Gravitational Lensing Experiment...
acronym: OGLEIV
See also: CORDIS
The OGLEIV ERC-funded project is the fourth part of a unique long-term sky survey (OGLE), which was launched in 1992 to conduct observations in the densest stellar regions of the sky.
Prof. Udalski’s team has launched a second generation planetary microlensing survey of the Galactic Centre using a new gigantic ‘CCD’ mosaic camera which allows observation of thousands of square degrees of the sky every night. The camera is among the largest imagers worldwide and the OGLEIV survey has regularly monitored over a billion objects, making it one of the largest sky variability surveys today.