THE DISTANT OPEN CLUSTER TOMBAUGH 2.

A preliminary color-magnitude diagram of the distant open cluster Tombaugh 2 shows it to bear a close resemblance to the well known, metal-poor cluster NGC 2158. From this, it is deduced that To 2 has a reddening of 0.08, a distance modulus of 15.6, and a main sequence turn-off color of 0.27. To 2 is approximately 18.5 kpc from the galactic center, and -1.69 kpc from the galactic plane, therefore representing one of the most distant open clusters from both the galactic plane and center.