
VISTA (the Visible and Infrared Survey Telescope for Astronomy) — has just started work at ESO’s Paranal Observatory and has made its first release of pictures. VISTA is a survey telescope working at infrared wavelengths and is the world’s largest telescope dedicated to mapping the sky. Its large mirror, wide field of view and very sensitive detectors will reveal a completely new view of the southern sky. Spectacular new images of the Flame Nebula, the centre of our Milky Way galaxy and the Fornax Galaxy Cluster show that it is working extremely well.
“VISTA is a unique addition to ESO’s observatory on Cerro Paranal. It will play a pioneering role in surveying the southern sky at infrared wavelengths and will find many interesting targets for further study by the Very Large Telescope, ALMA and the future European Extremely Large Telescope,” says Tim de Zeeuw, the ESO Director General.
Facts from ESO.org about VISTA:
VISTA’s main mirror is 4.1 metres across and is the most highly curved mirror of this size and quality ever made. It is a 3-tonne camera containing 16 special detectors sensitive to infrared light, with a combined total of 67 million pixels, 67 MILLION. Observing at wavelengths longer than those visible with the human eye allows VISTA to study objects that are otherwise impossible to see in visible light because they are either too cool, obscured by dust clouds or because they are so far away that their light has been stretched beyond the visible range by the expansion of the Universe. To avoid swamping the faint infrared radiation coming from space, the camera has to be cooled to -200 degrees Celsius and is sealed with the largest infrared-transparent window ever made.
Here are the newly released images. Click them for high resolution images.
New details in the Flame Nebula:
The heart of the MilkyWay


