How to find NGC6873 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 NGC6873.
NGC6873 is 59° above the horizon toward the southwest.
HYG 98695.0
From Altair, move about 6.4° toward the northeast until you reach HYG 98695.0.
HYG 98920.0
From HYG 98695.0, move about 5.4° toward the north until you reach HYG 98920.0.
