Construction of the individual Great Observatories M101 images

These steps combine data from each of NASA's three Great Observatories into a separate colour composite image. At the left are separate images from three different regions of infrared light from the Spitzer Space Telescope (top), three images from different regions of visible light from the Hubble Space Telescope (middle), and three different regions of X-ray light from the Chandra X-ray Observatory (bottom). Each of the three images from each observatory is assigned a colour according to its wavelength (energy). Red for the reddest (lowest energy) light, green for intermediate wavelengths, and blue for the bluest light (highest energy). These three separate colour images can blend together to see the light from a full range of light in each energy region.


NASA, ESA and Z. Levay (STScI)

About the Image

NASA press release
NASA caption
Release date:10 February 2009, 15:00
Size:3000 x 2505 px

About the Object

Name:Messier 101, NGC 4547, Pinwheel
Type:Local Universe : Galaxy : Type : Spiral
Distance:22 million light years

Image Formats

Large JPEG
1016.6 KB
Screensize JPEG
209.1 KB

Colours & filters

Optical Hubble Space Telescope
X-ray Chandra
InfraredSpitzer Space Telescope

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