4 ms·
> Send out the first batch of probes and then 5 years later send another batch of probes. What's the separation there, at 0.33 lightspeed? 1.65 light years? Wi
by palmotea 1y ago
> Send out the first batch of probes and then 5 years later send another batch of probes.
What's the separation there, at 0.33 lightspeed? 1.65 light years? Wikipedia says Voyager is 168.35 AU away, and Google says that's 0.00266 light years. Voyager has 23-watt radio focused by a 3.7m dish and its signals are received by a 70-meter dish on Earth.
So you're talking about a 1g spacecraft signaling another 1g spacecraft over 620 times the distance to Voyager, without any of the beefy equipment that exists on both ends of the Voyager link.
- floxy 1y agoHmm. Seems like you are you multiplying 5 years by 33% of light speed to come up with 1.65 light years? I apparently didn't explain well enough. The 5 years is for the first batch of probes to gather data over an extended period of time (while in orbit around the black hole). The second set of probes is just a roundtrip "fly-by" to collect the data from the first probes and return it to earth. No reason that the return trip probes would have to be very far from the data gathering probes. Maybe you can't orbit close enough to the black hole at these speeds without getting too close to the accretion disk?
- palmotea 1y agoEven then, I think you're going to have massive distances between tiny probes moving very fast relative to each other. Maybe not 1.65 light years, but communication over Voyager's 0.00266 light years or even a much smaller distance (e.g. Earth to moon) seems insurmountable for two 1g probes. Also, the probes are in deep space, right? No solar power. Where are they going to get the energy?