The star cluster Terzan 5

Peering through the thick dust clouds of our galaxy's central parts (the "bulge") with an amazing amount of detail, a team of astronomers has revealed an unusual mix of stars in the stellar grouping known as Terzan 5. Never observed anywhere in the bulge before, this peculiar cocktail of stars suggests that Terzan 5 is in fact one of the bulge's primordial building blocks, most likely the relic of a dwarf galaxy that merged with the Milky Way during its very early days.

This near-infrared image was obtained with the Multi-conjugate Adaptive Optics Demonstrator (MAD) instrument on ESO's Very Large Telescope. Observations in two bands (J and K) were combined. The field of view is 40 arcseconds across.

Mynd/Myndskeið:

ESO/F. Ferraro

Um myndina

Auðkenni:eso0945a
Tegund:Athuganir
Útgáfudagur:Nóv 25, 2009, 12:00 CET
Tengdar fréttatilkynningar:eso0945
Stærð:1355 x 1373 px

Um fyrirbærið

Nafn:Terzan 5
Tegund:Milky Way : Star : Grouping : Cluster
Fjarlægð:25000 ljósár
Constellation:Sagittarius
Flokkur:Star Clusters

Myndasnið

Stór JPEG
464,5 KB

Bakgrunnsmynd

1024x768
254,9 KB
1280x1024
371,8 KB
1600x1200
464,8 KB
1920x1200
523,9 KB
2048x1536
672,1 KB

Hnit

Position (RA):17 48 4.43
Position (Dec):-24° 46' 48.24"
Field of view:0.63 x 0.64 arcminutes
Stefna:Norður er 179.8° højre frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Innrautt
J
1.1 μmVery Large Telescope
MAD
Innrautt
Pseudogreen (J+K)
Very Large Telescope
MAD
Innrautt
K
2.2 μmVery Large Telescope
MAD

 

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