<p>In short, the escape velocity from the region we find ourselves in the milky way is <strong>544 Km/s +- 10%</strong>.</p>

<p>This number, and an extensive explanation of how it was calculated can be found on a paper called <a href="http://arxiv.org/pdf/astro-ph/0611671v2.pdf">The RAVE Survey: Constraining the Local Galactic Escape Speed</a></p>

<p>Also important to consider is the fact that we already are at aproximately <strong>220 Km/s</strong> because of the <strong>sun's orbital velocity</strong>, so the actual value needed to get there from earth is much lower.</p>

CC BY-SA 3.0
2013-12-13T21:29:12.287Z
2013-12-13T21:29:12.287Z
Eduardo Serra
<p>How do we calculate the escape velocity of galaxies?
Do we have to know the total mass?
What is the escape velocity for Milky Way?</p>

<galaxy><milky-way><velocity>
How do we calculate the escape velocity of galaxies?
Claudia
# How do we calculate the escape velocity of galaxies?

(Asked by: username_0 on 2013-12-13)

How do we calculate the escape velocity of galaxies?
Do we have to know the total mass?
What is the escape velocity for Milky Way?

**Tags:** galaxy, milky-way, velocity


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## 1 answers

### Answer by username_1 on 2013-12-13. Score: 6 | Accepted answer

In short, the escape velocity from the region we find ourselves in the milky way is **544 Km/s +- 10%**.

This number, and an extensive explanation of how it was calculated can be found on a paper called [The RAVE Survey: Constraining the Local Galactic Escape Speed](http://arxiv.org/pdf/astro-ph/0611671v2.pdf)

Also important to consider is the fact that we already are at aproximately **220 Km/s** because of the **sun's orbital velocity**, so the actual value needed to get there from earth is much lower.


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