The Dusty Iris Nebula | Hubble

The Dusty Iris Nebula | Hubble

This close-up of an area in the northwest region of the large Iris Nebula seems to be clogged with cosmic dust. With bright light from the nearby star HD 200775 illuminating it from above, the dust resembles thick mounds of billowing cotton. It is actually made up of tiny particles of solid matter, with sizes from ten to a hundred times smaller than those of the dust grains we find at home. Both background and foreground stars are dotted throughout the image. Researchers studying the object are particularly interested in the region to the left and slightly above centre in the image, where dusty filaments appear redder than is expected.

Technical Info: Data from the following proposal were used to create this image.

"The Exciting Wavelength of Extended Red Emission"

Red: ACS/WFC F850LP

Green: ACS/WFC F625W

Blue: ACS/WFC F475W

North is 169.96° clockwise from up.

North is down, East is right. The field of view is 3.3 arcminutes. The image is a composite of four images obtained through blue, green, near-infrared and H-alpha filters.

Credit: NASA & European Space Agency (ESA)

Processing: Judy Schmidt

Release Date: June 14, 2020

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