Little Gem (NGC 6445) + Globular Cluster NGC 6440
NGC 6445, also called Little Gem, is a bipolar planetary nebula and was discovered on May 28, 1786 by Wilhelm Herschel and cataloged as II 586. He described it as «pretty bright, small, of an irregular figure»  Distances range from 1.38 kpc  to 2.5 kpc . Surrounding the nebula is a fine halo, whose filaments are visible far out on H-II images. 
|Designations||PN G008.0+03.9: NGC 6445, PK 8+03.1, ARO 67, He 2- 290, Sa 2-248, ESO 589-09, VV 118, VV' 260|
|Right Ascension (J2000.0)||17h 49m 16s|
|Declination (J2000.0)||-20° 00' 35"|
|Dimensions||33." (optical), > 34." (radio)|
|Radial Velocity||+16.2 km/s ± 0.5 km/s|
|Expansion Velocity||38.0 km/s (O-III)|
|C-Star Designations||AG82 266, CSI -20 -17462, HD 161944|
|C-Star Magnitude||19.04 mag (B filter), 19.00 mag (V filter)|
|C-Star Spectral Type||Contin.|
Globular Cluster NGC 6440
NGC 6440 was discovered by Wilhelm Herschel in the same night and cataloged as I 150. He described it as «considerably bright, round, very gradually much brighter in the middle, about 1.5' diameter».  According to Simbad, it is moving towards us at 69 km/s. A distance measurement is not given. 
The open star cluster M 23 in the Sagittarius constellation leads directly to the planetary nebula NGC 6445. The southern globular star cluster NGC 6440 also serves as a further search aid. The sought-after planetary nebula is located directly west of a mag 7.5 star.
350 mm aperture: A fine circle surrounds the planetary nebula NGC 6445. The cap-shaped bright spots in the north and south of the nebula are striking. The nebula smolders delicately in its inner region. It is advantageous to use a relatively high magnification, greater than 200x, so that the shape of the planetary nebula is also fully revealed.