Timeline for Could 1950s technology detect / communicate with satellites in the solar system?
Current License: CC BY-SA 4.0
3 events
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| Dec 31, 2020 at 23:09 | comment | added | JanKanis | @jamesqf The OP indicated in a comment to another answer that they also planned to have satellites in earth and lunar orbits. Regarding sun telescopes: In that case I guess a satellite should orbit close to the sun without crossing the sun's disk. The glare of the sun should make it invisible. | |
| Dec 31, 2020 at 18:30 | comment | added | jamesqf | But the question says that these are deep space satellites, not ones in Earth orbit. Given the difficulties in detecting e.g. football field sized asteroids making fairly close passes to Earth (when we know such exist, and are deliberately looking for them), the alien satellites would need to be pretty large to be seen. (And you certainly can point telescopes at the sun, though they have rather different design criteria than ordinary astronomical telescopes: en.wikipedia.org/wiki/Solar_telescope ) | |
| Dec 31, 2020 at 15:11 | history | answered | JanKanis | CC BY-SA 4.0 |