Archive for October 2019

M71 – Globular Cluster In Sagitta – Observer’s Challenge Object – September 2019

October 15, 2019

SEPTEMBER 2019 OBSERVERS CHALLENGE – M-071

6-inch reflector:  Pencil sketch, using a blank 5 x 8 notecard, with the colors inverted.  Roger Ivester

Rogers M-071 Inverted