October 2017 Observer’s Challenge:  Click on the following link for full report. 

OCTOBER 2017 OBSERVERS CHALLENGE – M-015 2  

Easy to see in 7 x 50 finder.  10-inch reflector at 267x, M15 appears mostly round with a bright intense middle, and an excellent resolve of stars in the outer regions.  When using averted vision, an intermittent sprinkling of faint pin-point stars in the central region.  An impression of dark lanes extending outward from the core and a star chain around the SSW edge.  Bright field star to the north.

3.5-inch Maksutov, M15 appears circular with a very bright and intense center.  There was no resolution of stars with this aperture.  RI