4 ms·
There’s no wide angle in a gravitational lens. It’s only a couple of square km of view into the other system. So the telescope needs to lign up perfectly, and m
by ant6n 2y ago
There’s no wide angle in a gravitational lens. It’s only a couple of square km of view into the other system. So the telescope needs to lign up perfectly, and move around to follow the exoplanet. It’s a very difficult task.
- irrational 2y agoHow would they even find an exoplanet as small as earth if all they can see is a couple of square km? Point it at the system and hope the planet just happens to move across the field of view?
- ant6n 2y agoYou need to already know it's there and specifically point at it. It's hard to point so exactly.