52.6 MB (2.6 MB compressed)
5190 x 3543 pixels
43.9 x 30.0 cm ⏐ 17.3 x 11.8 in (300dpi)
RONALD ROYER / SCIENCE PHOTO LIBRARY RONALD ROYER / SCIENCE PHOTO LIBRARY
Optical photograph of the Perseus double star cluster, with chi Persei (left centre) & h Persei (right centre), in the constellation of Perseus. Located some 7100 light years from Earth, & separated by 50 light years from each other, the clusters are an estimated 10-20 million years old. 18", f/7, 20 minutes, Ekta 64 x 2.
Model release not required. Property release not required.