This is a great hunter. You can see him in winter.
Really, the stars are different (big) distances away.
We can imagine the stars located on a celestial sphere.
"Distances" on the celestial are measured as angles.
The unit of angular measurement is usually the degree.
A full circle is 360 degrees.
Davison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA email@example.com