How fast must Voyager travel to leave the solar system?

In summary, the Voyager probes have sufficient velocity to escape the Sun's gravitational influence and are not in orbit around the Sun. However, they will eventually be influenced by other nearby stars. The solar system itself has an estimated escape velocity of 550 km/s relative to the Sun, while the Voyager probes are traveling at a speed of 15 km/s.
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SPB COOPERATOR
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I have read articles about the Voyager probes leaving the solar system (or not) depending on what definition is used. So, another definition - do the Voyagers have sufficient velocity to escape the Sun's gravitati0nal influence?
 
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SPB COOPERATOR said:
...do the Voyagers have sufficient velocity to escape the Sun's gravitati0nal influence?
Yes.
 
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Technically, the Sun's gravitational influence extends indefinitely. The Voyager spacecraft , however, are not in an orbit of the Sun - they have more than what is known as the escape velocity. Eventually, the primary gravitational influence will be another nearby star.
 
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Ooops I overlooked the point the the Sun's Ve of 617.5 km/s is from the sun itself, not the solar system. Does the solar system itself have Ve and even the galaxy itself?
 
  • #5
SPB COOPERATOR said:
Ooops I overlooked the point the the Sun's Ve of 617.5 km/s is from the sun itself, not the solar system. Does the solar system itself have Ve and even the galaxy itself?
This page gives you an estimated galactic escape velocity relative to the Sun of 550 km/s:

https://en.wikipedia.org/wiki/Milky_Way

Voyager is traveling at ##15 km/s## relative to the Sun.
 

1. What is Voyager and why is it important?

Voyager is a space probe launched by NASA in 1977 with the mission to explore the outer planets of our solar system. It carries a golden record containing images and sounds representing Earth, in case it is ever discovered by extraterrestrial life. Voyager has provided us with valuable information and images of the outer planets and their moons, and continues to be an important tool for studying our solar system.

2. How fast is Voyager currently traveling?

As of 2021, Voyager 1 is traveling at a speed of approximately 38,000 miles per hour (61,000 kilometers per hour) relative to the Sun. Voyager 2 is traveling at a speed of approximately 34,000 miles per hour (54,000 kilometers per hour) relative to the Sun. These speeds are constantly decreasing as Voyager continues to travel away from the Sun.

3. How fast must Voyager travel to leave the solar system?

Voyager does not need to reach a certain speed to leave the solar system. It is already on a trajectory that will take it out of our solar system and into interstellar space. This is due to the gravitational pull of the outer planets and their moons, which have given Voyager the necessary speed and direction to continue on its journey.

4. How long will it take for Voyager to leave the solar system?

It is estimated that Voyager 1 will leave the solar system in about 300 years, while Voyager 2 will take about 30,000 years. This is because Voyager 1 is traveling in a slightly different direction than Voyager 2, and is therefore closer to the edge of the solar system.

5. Will Voyager ever reach another star system?

No, Voyager is not on a trajectory to reach another star system. It is currently traveling in a direction that will take it out of our solar system and into interstellar space, but it will not come close to any other star systems. It is expected to continue traveling through the Milky Way galaxy for millions of years, but it is unlikely to encounter any other star systems or planets.

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