Click the image for 60% size


Catalogue and alternative designations NGC 6440 and NGC 6445.  NGC 6445 is sometimes known as the Box nebula.


Type Globular Cluster (NGC 6440) and Planetary Nebula (NGC 6445)
Position  17 49 05.3, -20 10.2
Constellation Sagittarius
Camera and Telescope STL6303 and 31.75 cm Ritchey Chretien
Focal Ratio F9
Exposure Details LRGB =180:90:90:90 with Astrodon series 2 filters all 1x1
Description NGC 6440 is quite near to the sun as globulars go at only 6000 parsecs but it suffers from 4 magnitudes of interstellar absorption thus making it less prominent than might be expected.  NGC 6445 is a planetary nebula approximately 22' to the north east about which not much is known.  The size is given as 2.8' x0.9'.