do some of the pictures have that strange shape?
Planetary Camera 2 (WFPC2) instrument consists of four cameras.
The Planetary Camera (PC) sees a narrow region of the
sky, though the resulting digital images are the same size.
The three Wide-Field Cameras (WFC) see a slightly wider, adjacent
regions. When the resulting images are rotated and positioned
and scaled appropriately, a mosaic with the characteristic
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