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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
Sobre a imagem
| Id: | eso0945a |
| Tipo: | Observação |
| Data de divulgação: | 25 de Novembro de 2009 às 12:00 |
| Notícias relacionadas: | eso0945 |
| Tamanho: | 1355 x 1373 px |
Sobre o objeto
| Nome: | Terzan 5 |
| Tipo: | Milky Way : Star : Grouping : Cluster |
| Distância: | 25000 anos-luz |
| Constellation: | Sagittarius |
| Categoria: | Star Clusters |
Formatos de imagens
Papéis de parede
Coordenadas
| Position (RA): | 17 48 4.43 |
| Position (Dec): | -24° 46' 48.24" |
| Field of view: | 0.63 x 0.64 arcminutes |
| Orientação: | O norte está a 179.8° à direita da vertical |
Ver no WorldWide Telescope:
Cores e filtros
| Banda | Comprimento de onda | Telescópio |
|---|---|---|
| Infravermelho J | 1.1 μm | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) |
| Infravermelho Pseudogreen (J+K) | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) | |
| Infravermelho K | 2.2 μm | Very Large Telescope ESO Multi-conjugate Adaptive optics Demonstrator (MAD) |