One big problem (besides getting out there - hehe) is that you are looking in one very particular direction and need to move big distances (at a distance of ~500 au from the sun) to look elsewhere. I guess you could wait until the planet you are aiming at does another orbit around its star and flies through your point of focus again.
PS Voyager launched in 1971 and is now at 158 au! These distances are truly vast. 1 light year is 63241 au.
One big problem (besides getting out there - hehe) is that you are looking in one very particular direction and need to move big distances (at a distance of ~500 au from the sun) to look elsewhere. I guess you could wait until the planet you are aiming at does another orbit around its star and flies through your point of focus again.
PS Voyager launched in 1971 and is now at 158 au! These distances are truly vast. 1 light year is 63241 au.