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.
Credit:ESO
About the Image
Id: | eso0322a |
Type: | Observation |
Release date: | 22 July 2003 |
Related releases: | eso0322 |
Size: | 1533 x 1536 px |
About the Object
Name: | W49A |
Type: | Local Universe : Nebula : Appearance : Dark : Molecular Cloud |
Distance: | 35000 light years |
Category: | Nebulae |
Wallpapers
Colours & filters
Band | Wavelength | Telescope |
---|---|---|
Infrared J | 1.2 μm | New Technology Telescope SOFI |
Infrared H | 1.65 μm | New Technology Telescope SOFI |
Infrared K | 2.2 μm | New Technology Telescope SOFI |