3 ms·

Getting to the sun actually requires more energy than leaving the solar system: https://www.theatlantic.com/science/archive/2018/08/parker-solar-probe-launch-n

• gnode 7y ago
  Indeed, although you wouldn't just use 30km/s of delta-v to cancel the Earth's orbit, or 12.3km/s to escape the solar system. The Ulysses probe for instance used a gravitational assist around Jupiter to not only counter Earth's 30km/s orbit, but establish a counter-rotational orbit around the sun. My understanding is the ideal target would depend on the time you wished to launch, and the orbital phase of planets useful for gravity assists.
  • arethuza 7y ago
    Well, if you are going to do that, why not dump it in Jupiter? [NB Not that I would be in favour of that, but seems easier than the other options].