M10(NGC 6254) Oph globular cluster
Difficulty level 2

Date of observation: 1998/05/04 01:50
Observing site: Kuju
Transparency/seeing/sky darkness: 4/4/4
Instruments: 32cm Dobsonian with XL14 at 110x
Width of field: 0.6 degree
This is a bright, large globular cluster. It is resolved well to the center. The stars are evenly distributed except three bright stars at the edge. It has smooth brightening toward the center. With a careful look there is a close double in the south toward which a line of stars extends.