How does the Hubble Space Telescope produce an image?
Unmanned HST space observatory has produced, since 1990, more than mll;ion images of nearer sky objects, like moon, and far distant supernovas Please see explanation.
The sit-turn-shoot Hubble Space Telescope (HST) mechanically neutralizes the angular speed
The precision in measuring angular spacing, for making images. could be as small as 0.007" =
For this precision, an image as wide as about 35 light years could be covered, at 1 billion light years of distance.