4 ms·

The number pixels affected increases with the linearly with the exposure length. However to spot things twice as far away (at the same brightness) we need to st

The number pixels affected increases with the linearly with the exposure length. However to spot things twice as far away (at the same brightness) we need to stare 4 times longer at the same place.

Retric 5y ago
That’s assuming a fixed instrument and zero mitigation. You can also add a shutter or increase the light gathering area to reduce exposure time etc.
- freemint 5y ago
  Yes one can build a new telescope.
  - Retric 5y ago
    More, when building a new telescope how much money does it take to get the same amount of data. If spending 1% more gives the same data then it’s not that significant an issue.