<p>Using the data from <a href="http://www.johnstonsarchive.net/astro/nearstar.html" rel="nofollow noreferrer">http://www.johnstonsarchive.net/astro/nearstar.html</a> I calculated 5.462 ly. The reference list stars to 25.1 ly with x, y, z coordinates and Right ascension, Declination and distance from our sun.</p>

CC BY-SA 4.0
2021-08-01T02:29:27.597Z
2021-08-01T02:29:27.597Z
W H G
<p>As answered by <a href="http://www.wolframalpha.com/input/?i=distance%20between%20tau%20ceti%20and%20epsilon%20eridani" rel="noreferrer">Wolframalpha</a>, (as linked by chirlu) The distance between Tau Ceti and Epsilon Eridani is 5.45 light years.</p>

CC BY-SA 3.0
2018-01-08T21:15:51.800Z
Didn't know you could do that sort of thing of WolframAlpha - thanks.
StephenG - Help Ukraine
CC BY-SA 4.0
2021-07-28T09:54:39.800Z
@StephenG Wolfram alpha is convenient fo one-line answers but it's sometimes just plain wrong. It can not be trusted as an authoritative source because it's just a  mindless robot when it comes to text-based queries. [Why doesn't Wolfram Alpha show low gravitational acceleration for the Hudson Bay?](https://earthscience.stackexchange.com/q/16787/6031)
uhoh
CC BY-SA 3.0
2018-01-08T20:46:22.987Z
2018-01-08T20:46:22.987Z
James K
<p>I am working on a story. It would be helpful if someone could provide the distance in light years between star Epsilon Eridani and star Tau Ceti.</p>

<p><img src="https://i.sstatic.net/RunoA.png" alt="star graph"></p>

CC BY-SA 3.0
2018-01-08T20:09:16.367Z
http://www.wolframalpha.com/input/?i=distance+between+tau+ceti+and+epsilon+eridani
chirlu
CC BY-SA 3.0
2018-01-12T10:57:52.380Z
Nope  @barrycarter
Peaceman
CC BY-SA 4.0
2024-01-04T17:10:56.627Z
This page had the 3d position of those, and shows how to do the computation so you can verify the correctness yourself. https://celestialprogramming.com/snippets/starxyz.html
Greg Miller
<star><distances>
Distance between stars Epsilon Eridani and Tau Ceti?
Peaceman
# Distance between stars Epsilon Eridani and Tau Ceti?

(Asked by: username_0 on 2018-01-08)

I am working on a story. It would be helpful if someone could provide the distance in light years between star Epsilon Eridani and star Tau Ceti.

![star graph](https://i.sstatic.net/RunoA.png)

**Tags:** star, distances
> **Comments:**
> **username_1**: http://www.wolframalpha.com/input/?i=distance+between+tau+ceti+and+epsilon+eridani  
> **username_0**: Nope  @barrycarter  
> **username_2**: This page had the 3d position of those, and shows how to do the computation so you can verify the correctness yourself. https://celestialprogramming.com/snippets/starxyz.html  

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## 2 answers

### Answer by username_4 on 2018-01-08. Score: 5 | Accepted answer

As answered by [Wolframalpha](http://www.wolframalpha.com/input/?i=distance%20between%20tau%20ceti%20and%20epsilon%20eridani), (as linked by chirlu) The distance between Tau Ceti and Epsilon Eridani is 5.45 light years.

> **Comments:**
> **username_5**: Didn't know you could do that sort of thing of WolframAlpha - thanks.  
> **username_6**: @StephenG Wolfram alpha is convenient fo one-line answers but it's sometimes just plain wrong. It can not be trusted as an authoritative source because it's just a  mindless robot when it comes to text-based queries. [Why doesn't Wolfram Alpha show low gravitational acceleration for the Hudson Bay?](https://earthscience.stackexchange.com/q/16787/6031)  

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### Answer by username_3 on 2021-08-01. Score: 2

Using the data from <http://www.johnstonsarchive.net/astro/nearstar.html> I calculated 5.462 ly. The reference list stars to 25.1 ly with x, y, z coordinates and Right ascension, Declination and distance from our sun.


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