Coadding Images from Stripe 82 (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Coadding Images from Stripe 82

Caption

Layering photos of one area of sky taken at various time periods, a process called coaddition, can increase the sensitivity of the images six-fold, by removing errors and enhancing faint light signals. The image on the left shows a single picture of galaxies from SDSS Stripe 82. The image on the right shows the same area after layering, increasing the number of visible, distant galaxies.

Credit

SDSS

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