Colour composite of W49A
Composite near-infrared colour image from NTT/SofI of the Giant Molecular Cloud W49A. It covers a sky area of 5 x 5 arcmin 2 and the red, green and blue colours correspond to the Ks- (wavelength 2.2 µm), H- (1.65 µm) and J-band (1.2 µm), respectively. North is up and East is to the left. The labels identify known radio sources. The main cluster is seen north-east of the region labelled "O3". The colour of a star in this image is mostly a measure of the amount of dust absorption towards this star. Hence, all blue stars in this image are located in front of the star-forming region.
Créditos:ESO
Sobre a imagem
Id: | eso0322a |
Tipo: | Observação |
Data de divulgação: | 22 de Julho de 2003 |
Notícias relacionadas: | eso0322 |
Tamanho: | 1533 x 1536 px |
Sobre o objeto
Nome: | W49A |
Tipo: | Local Universe : Nebula : Appearance : Dark : Molecular Cloud |
Distância: | 35000 anos-luz |
Categoria: | Nebulae |
Papéis de parede
Cores e filtros
Banda | Comprimento de onda | Telescópio |
---|---|---|
Infravermelho J | 1.2 μm | New Technology Telescope SOFI |
Infravermelho H | 1.65 μm | New Technology Telescope SOFI |
Infravermelho K | 2.2 μm | New Technology Telescope SOFI |