How to find NGC2645 from HYG 39953.0

Identify the first reference star, then follow the numbered hops.

Follow the route from one recognizable star to the next until you reach NGC2645.

NGC2645 is 33° above the horizon toward the southeast.

HYG 39953.0

Center HYG 39953.0 in the finder or a low-power eyepiece before following the field stars.

From HYG 39953.0, move about 5.3° toward the east until you reach HYG 42570.0.

From HYG 42570.0, move about 0.5° toward the northwest until you reach NGC2645. This is the target field.