Puragra Guhathakurta of the University
of California at Santa Cruz explains just
how crowded M15 is.

"Represent every star with a pea..."
a sun the size of a pea
"...the distance from the sun to the nearest star would be ten kilometers."
Peas 10km apart
"In a cluster, the peas are separated by one kilometer ..."
1km apart
"...in M15, the distance between peas shrinks to 100 meters."
Peas 100m apart



peer into M15 galicon.gif to the beginning