How to find NGC6738 from Altair
Identify the first reference star, then follow the numbered hops.
Follow the route from one recognizable star to the next until you reach NGC6738.
NGC6738 is 45° above the horizon toward the northwest.
HYG 95253.0
From Altair, move about 7° toward the west until you reach HYG 95253.0.
HYG 93867.0
From HYG 95253.0, move about 4.1° toward the west until you reach HYG 93867.0.
