The Omega Centauri globular cluster and the area surveyed

Image of the Omega Centauri globular cluster from the the Digital Sky Survey (left). The image covers a region of 2.1 x 1.1 degrees on the sky, illustrating the very large extent of this cluster of stars. The right image is the ACS exposure taken with the Hubble Space Telescope which the astronomers used to detect and study the two distinct populations of hydrogen core-burning stars. The position of the ACS field with respect to the full globular cluster is shown as the red box. This field was chosen to lie in the outskirts of the cluster in order to ensure that there won't be any "crowding" problems and that there would be only one star in each FLAMES/VLT fiber.

Telif:

ESO

Görüntü Hakkında

Kimlik:eso0509a
Tür:Kolaj
Yayın tarihi:15 Mart 2005
Bağlantılı bültenler:eso0509
Boyut:4364 x 2020 px

Nesne Hakkında

Adı:NGC 5139, Omega Centauri
Tür:Milky Way : Star : Grouping : Cluster : Globular
Uzaklık:17000 ışık yılı
Kategori:Star Clusters

Görüntü Türleri

Büyük JPEG
381,2 KB

Renkler & Filtreler

BantTeleskop
OptikHubble Space Telescope
ACS
Optik
B
Digitized Sky Survey 2
Optik
R
Digitized Sky Survey 2

Notlar: The right image was captured by the Hubble Space Telescope. The left image is an excerpt from the Digital Sky Survey.