Epsilon Indi and Tau Ceti

  • #1

Main Question or Discussion Point

Hi,

I wonder if anyone can either answer the following or point me in the right direction for the answer?

How far apart are Epsilon Indi and Tau Ceti?

Thanks in advance.

Chinspinner
 

Answers and Replies

  • #2
Bandersnatch
Science Advisor
2,911
1,814
They're 11.49 ly apart.
The two stars and Sol create a very nearly equilateral triangle.

Normally, if you need to find out such information, you should find the angle between the stars on the sky from their measured celestial coordinates (right ascension and declination) as well as distances, build a triangle with that information and use basic trigonometry to get the length of the third side of the triangle.

If you're not familiar with celestial coordinates, it can prove a bit of a pain in the neck to get there, so you could instead use a planetarium software to do it for you.

The one I use is Celestia, and it's freely available on the net.
 
  • #3
Thanks Bander. I'll look up Celestia.
 

Related Threads on Epsilon Indi and Tau Ceti

Replies
4
Views
244
  • Last Post
Replies
10
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
2K
Replies
35
Views
2K
Replies
3
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
5K
Replies
1
Views
2K
Replies
7
Views
1K
Top