Astronomy Special Project by Lucia Pizarro
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Lucia Pizarro, The Wild Duck Cluster
The above image was composed from 10 45-second exposures in Sloan g, 10 45-second exposures in Sloan r, and 10 60-second exposures in Sloan i.
Sloan g is mapped to blue, Sloan r is mapped to green, and Sloan i is mapped to red.