Perhaps I should be able to figure this out, but I cannot. I would please like to determine the orbital period for a spacecraft orbiting a celestial body given a certain altitude.

For example, if I were orbiting Mun at 100 km given a certain eccentricity, how long would that orbit take? From the formula used to determine that, I suppose it would be quite straightforward to determine the orbital period if the orbit were circular instead of elliptical. I also suppose I could then go backwards and find out the altitude needed to achieve an orbital period of, say, three hours.

I went to Wikipedia under "orbital period," but I don't know how to translate the information for the Kerbol system. Here is the link for the Wikipedia article:

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later.
If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

## Question

## MetricKerbalist

Hi KSP colleagues,

Perhaps I should be able to figure this out, but I cannot. I would please like to determine the orbital period for a spacecraft orbiting a celestial body given a certain altitude.

For example, if I were orbiting Mun at 100 km given a certain eccentricity, how long would that orbit take? From the formula used to determine that, I suppose it would be quite straightforward to determine the orbital period if the orbit were circular instead of elliptical. I also suppose I could then go backwards and find out the altitude needed to achieve an orbital period of, say, three hours.

I went to Wikipedia under "orbital period," but I don't know how to translate the information for the Kerbol system. Here is the link for the Wikipedia article:

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

Thank you for your consideration.

Stanley

## Link to comment

## Share on other sites

## 3 answers to this question

## Recommended Posts

## Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Note:Your post will require moderator approval before it will be visible.