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Polizeiposaune 2 days ago

Would be very challenging to get there in time.

11AU is outside Saturn's orbit. With the high inclination of the orbit (95 degrees) it's coming in on a more-or-less polar orbit of the sun. You might need a Jupiter flyby along the lines of what Ulysses did to fling it out of the ecliptic plane, but Jupiter might not be in the right place in its orbit to make that work..

And you'd need a very light spacecraft (not much mass budget for instruments) launched very fast, and it's far enough away from the sun that you'd want RTG power rather than solar panels.

JoeDaDude 2 days ago | parent | next [-]

I can't make a fair comparison between the object in TFA and Oumuamua, the presumed interstellar object that passed through our Solar System not long ago. For the latter, a "Project Lyra" study [1] posits a combination of Earth and Jupiter gravitational assists to catchup with Oumuamua. Could a similar approach work for this comet?

[1]. https://i4is.org/project-lyra-a-solar-oberth-at-10-solar-rad...

Archelaos 2 days ago | parent | prev | next [-]

> With the high inclination of the orbit (95 degrees) ...

How can such a high inclination be explained?

Polizeiposaune 2 days ago | parent [-]

The observed distribution of inclinations of long-period comets are why it's called the Oort cloud and not the Oort belt..

Short period comets are relatively close to the ecliptic, while very-long-period comets have evenly distributed inclinations suggesting that the objects in the Oort are more or less spherically distributed.

Discussed here: https://en.wikipedia.org/wiki/Oort_cloud#Development_of_theo...

vivzkestrel 2 days ago | parent | prev | next [-]

what would it take to build and accelerate an object to 295000 kms/s? Like seriously, would it take nuclear propulsion or is it antimatter engine or solar sail?

lsllc a day ago | parent [-]

The speed of light is 299792.458km/s so according to a quick Google search it takes 4.28x10^17J to accelerate 1kg to 0.98c.

vivzkestrel 16 hours ago | parent | next [-]

ok so obviously we cannot slingshot someone with that speed or even use chemical rockets to reach those levels. So are there newer propulsion systems being worked upon?

fecal_henge a day ago | parent | prev [-]

Thats nearly an entire camenbert.

TheSpiceIsLife 2 days ago | parent | prev [-]

I'm far enough away from the sun that I want an RTG rather than solar.