It's impossible to give a single distance between "Leo stars" because the constellation Leo is a vast area of the sky containing many stars, each at its own unique distance from Earth.

Here's why you can't give a single distance:

* Constellations are visual: Constellations are patterns we see in the night sky, but the stars within them are not physically close to each other. They are at vastly different distances from Earth.

* Stars are spread out: The stars in a constellation can be hundreds or even thousands of light-years apart, even though they appear close together from our vantage point on Earth.

To find the distance to a specific star in Leo, you would need to:

1. Identify the star: Look up the star's name (e.g., Regulus, Denebola) in a star chart or astronomy database.

2. Find its distance: You can search for the star's distance in light-years using online databases like SIMBAD or the NASA/IPAC Extragalactic Database.

Example:

* Regulus, the brightest star in Leo, is about 79 light-years from Earth.

* Denebola, another bright star in Leo, is about 36 light-years from Earth.

So, the "distance between Leo stars" can vary greatly depending on which stars you are considering.