NGC 6440

Located in a rich field of stars and nebulae in the direction of Sagittarius, it lies about 27,700 ly from Earth. The rich yellow colour of its stars is not indicative of stellar age, however, but of substantial extinction during the light's long passage though the dense inner regions of our galaxy. Also in the field, in addition to the countless stars, are numerous dark nebulas including B84 at upper right and a nice planetary nebula, NGC 6445, to the upper left.  

Classified as V (intermediate concentrations) on the Shapley-Sawyer globular cluster concentration scale (1927).


Camera: SBIG STL11000M, Astrodon filters Scope: Takahashi TOA-130, f=1000mm, f7.7, fov=1.0 x 0.7
Mount: Takahashi EM-200 Temma 2 Guiding: external (E-finder)
Filters/Exposures: R:G:B = 30:30:30 ≡ 1h30m Location: ASV's LMDSS, Lady's Pass, Victoria, Australia
Date: August/September 2023 Processing: CCDStack2, RegiStar and Photoshop CS5