3 ms·
Probably even many, because it‘s energetically impractical to stop at the focal point.
by Tomte 2y ago
Probably even many, because it‘s energetically impractical to stop at the focal point.
- skykooler 2y agoThe neat thing about a how an Einstein ring works is that you don't need to stop, because rather than there being a focal point, there is a focal line, moving directly outward from the Sun. This means a probe could spend potentially decades imaging the same target on its outward path, if it had sufficient power.