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.
Herkunftsnachweis:ESO
Über das Bild
ID: | eso0322a |
Typ: | Beobachtung |
Veröffentlichungsdatum: | 22. Juli 2003 |
Dazugehörige Veröffentlichungen: | eso0322 |
Größe: | 1533 x 1536 px |
Über das Objekt
Name: | W49A |
Typ: | Local Universe : Nebula : Appearance : Dark : Molecular Cloud |
Entfernung: | 35000 Lichtjahre |
Kategorie: | Nebulae |
Bildschirm-Hintergrundbilder
Farben & Filter
Spektralbereich | Wellenlänge | Teleskop |
---|---|---|
Infrarot J | 1.2 μm | New Technology Telescope SOFI |
Infrarot H | 1.65 μm | New Technology Telescope SOFI |
Infrarot K | 2.2 μm | New Technology Telescope SOFI |