The James Webb Space Telescope is gradually being fine tuned such that each of the 18 hexagonal mirror sections is adjusted such that its received light is pinpointed precisely on the center point of the main receiving mirror panel so that they overlap precisely...
Here is the issue:
"Achieving A Single Perfect Focus- Actuators
Once in space, getting these mirrors to focus correctly on faraway galaxies is another challenge. Actuators, or tiny mechanical motors, provide the answer to achieving a single perfect focus. The primary mirror segments and secondary mirror are moved by six actuators that are attached to the back of each mirror piece. The primary mirror segments also have an additional actuator at its center that adjusts its curvature. The telescope's tertiary mirror remains stationary."
"Lee Feinberg, Webb Optical Telescope Element Manager at NASA Goddard explains, "Aligning the primary mirror segments as though they are a single large mirror means each mirror is aligned to 1/10,000th the thickness of a human hair. What's even more amazing is that the engineers and scientists working on the Webb telescope literally had to invent how to do this." "
I will POST another link where you may find more detail about the JWST's sensitivity or how much detail it can see... "Webb's primary mirror is 6.5 meters (21 feet 4 inches) across; a mirror this large has never before been launched into space."
I hope you enjoy these first images, which are still not the best images that the JWST will be capable of!
Kerry
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