How to find NGC6821 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 NGC6821.
NGC6821 is 56° above the horizon toward the southwest.
HYG 97804.0
From Alshain, move about 5.4° toward the south until you reach HYG 97804.0.
HYG 97655.0
From HYG 97804.0, move about 5.7° toward the south until you reach HYG 97655.0.
