NGC 6834 is a small cluster of stars on the border of Cygnus and Vulpecula, about 7 degrees east and 2 degrees north of Alberio. Since it is a small cluster, moderate magnification will give the best view. The individual stars are relatively faint, with the brightest being about 8th magnitude, however the richness of the cluster makes it an interesting object for the telescope.
The yellow circle to the lower left of the cluster in the image below, indicates the position of the planetary nebula NGC 6842. This is not a difficult object in an 8" telescope, although moderate magnification is needed to show a disk. In a 10" telescope it appears as a grayish disk, a little larger than Jupiter.