First İmages From The VLT Survey Telescope

The VLT Survey Telescope (VST) is the latest telescope to be added to ESO's Paranal Observatory in the Atacama Desert of northern Chile. It is housed in an enclosure immediately adjacent to the four VLT Unit Telescopes on the summit of Cerro Paranal under the pristine skies of one of the best observing sites on Earth. The VST is a wide-field survey telescope with a field of view twice as broad as the full Moon. It is the largest telescope in the world designed to exclusively survey the sky in visible light. Over the next few years the VST and its camera OmegaCAM will make several very detailed surveys of the southern sky. All survey data will be made public. "I am very pleased to see the impressive first images from the VST and OmegaCAM. The unique combination of the VST and the VISTA infrared survey telescope will allow many interesting objects to be identified for more detailed follow-up observations with the powerful telescopes of the VLT," says Tim de Zeeuw, the ESO Director General.

"The VST project has overcome many difficulties but it is now repaying, with its excellent image quality, the expectations of the astronomical community and the efforts of the many people at INAF involved in its construction. I am very pleased to see the VST in operation," adds Tommaso Maccacaro, the President of the Italian National Institute for Astrophysics (INAF).

The VST programme is a joint venture between the INAF-Osservatorio Astronomico di Capodimonte, Naples, Italy [1] and ESO. INAF has designed and built the telescope with the collaboration of leading Italian industries and ESO is responsible for the enclosure and the civil engineering works at the site. OmegaCAM, the VST's camera, was designed and built by a consortium including institutes in the Netherlands, Germany and Italy [2] with major contributions from ESO. The new facility will be operated by ESO, which will also archive and distribute data from the telescope.

The VST is a state-of-the-art 2.6-metre aperture telescope with an active optics system to keep the mirrors perfectly positioned at all times. At its core, behind large lenses that ensure the best possible image quality [3], lies the 770 kg OmegaCAM camera, built around 32 CCD detectors [4], sealed in vacuum, that together create 268-megapixel images [5].

The First Images

Both the telescope and the camera have been designed to fully exploit the high quality skies at Paranal.

"The superb images now coming from VST and OmegaCAM are a tribute to the hard work of many groups around Europe over many years. We are now looking forward to a rich harvest of science and unexpected discoveries from the VST surveys," adds Massimo Capaccioli, principal investigator of the VST project.