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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.
ESO/F. Ferraro
Über das Bild
| ID: | eso0945a |
| Typ: | Beobachtung |
| Veröffentlichungsdatum: | 25. November 2009 12:00 |
| Dazugehörige Veröffentlichungen: | eso0945 |
| Größe: | 1355 x 1373 px |
Über das Objekt
| Name: | Terzan 5 |
| Typ: | Milky Way : Star : Grouping : Cluster |
| Entfernung: | 25000 Lichtjahre |
| Constellation: | Sagittarius |
| Kategorie: | Star Clusters |
Bildschirm-Hintergrundbilder
Koordinaten
| Position (RA): | 17 48 4.43 |
| Position (Dec): | -24° 46' 48.24" |
| Field of view: | 0.63 x 0.64 arcminutes |
| Orientierung: | Die Nordrichtung liegt 179.8° rechts zur Vertikale |
Ansicht in WorldWide Telescope:
Farben & Filter
| Spektralbereich | Wellenlänge | Teleskop |
|---|---|---|
| Infrarot J | 1.1 μm | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) |
| Infrarot Pseudogreen (J+K) | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) | |
| Infrarot K | 2.2 μm | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) |