Sagittarius 7

Double stars:

Nu1 Sagittarii is a fixed binary with faint companion: 5.0, 10.8; PA 97º and separation 2.5".
Note that nu1 and nu2 are not gravitationally bound, although they form an optical binary of some historical importance: these two stars caused Ptolemy to write about "a nebulous double star" long before Hershel coined the term "binary".
54 Sgr also catalogued as h 599 is a multiple system:
AB: 5.4, 12; PA 274º, separation 38"; AC: 8.9; PA 42º, 45.6". The primary has a reddish tinge to it.

Rho1 and rho2 form a nice triangle with h 2866:
AB: 8.0, 8.3; 53º, 23.4" Variable stars:
Sagittarius has a variety of variables, some of which are suitable for small scopes, primarily cepheids but also one Mira-type long range variable.
Upsilon Sgr is an eclipsing binary (beta Lyrae type: EB) with an unusually long period of 137.9 days. Its range will be undetectable to most observers, from 4.53 to 4.61, but what makes the system interesting is that it seems to be one of the most luminous systems known (with an estimated absolute magnitude of around -7.5).
The brightest cepheids are: W Sgr (4.3-5.1 every 7.6 days) and X Sgr (4.2-4.9 every 7 days).
R Sagittarii is a long-period variable fluctuating from 6.7 to 12.8 every 269.84 days. In 2000 the maximum should occur in the second week of July.
The star is found two degrees NE of pi Sagittarii, or just past the midpoint of a line between pi and rho Sgr.