The globular cluster NGC 6388, observed by the NASA/ESA Hubble Space Telescope

This image from the NASA/ESA Hubble Space Telescope shows NGC 6388 (47 Tucanae), a dynamically middle-aged globular cluster in the Milky Way. While the cluster formed in the distant past (like all globular clusters, it is over ten billion years old), a study of the distribution of bright blue stars within the cluster shows that it has aged at a moderate speed, and its heaviest stars are in the process of migrating to the centre.

A new study using Hubble data has discovered that globular clusters of the same age can have dramatically different distributions of blue straggler stars within them, suggesting that clusters can age at substantially different rates.

Të drejtat:

NASA, ESA, F. Ferraro (University of Bologna)

Rreth fotografisë

Id:eso1252b
Tipi:Vëzhgim
Data e Publikimit:Dhj 19, 2012, 19:00 CET
Publikime të ngjashme:eso1252
Përmasat:4278 x 4197 px

Rreth objektit

Emri:47 Tucanae, NGC 6388
Tipi:Milky Way : Star : Grouping : Cluster : Globular
Distanca:35000 vite dritë
Constellation:Scorpius
Kategori:Star Clusters

Formate Fotografish

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Koordinatat

Position (RA):17 36 16.96
Position (Dec):-44° 44' 5.00"
Field of view:3.56 x 3.50 arcminutes
Orientimi:Veriu është 10.4° djathtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
435
Hubble Space Telescope
ACS
Optik
V
606 nmHubble Space Telescope
ACS
Infra të kuqe
I
814 nmHubble Space Telescope
ACS

 

Shih dhe