NGC 6366

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Object data of NGC6366

Object type: Globular star cluster (XI)
Size: 13'
Magnitude: 9.2 mag
Constellation: Oph
Distance: 11,400 Ly
Notes: NGC 6366 is a large and quite "open" globular cluster, as indicated by its concentration class XI. With a distance of 11,400 light-years it is currently ranked as the fifth nearest the sun. Strong interstellar extinction is the reason for the reddish colour of NGC 6366:

E(B-V) = 0.7mag

B-V = 1.44mag

Exposure data

Date: 2015-06-12+24
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: ASA DDM85
Exposure time: L 55x2min / R 18x2min / G 18x2min / B 18x2min
Exposure time total: 3h 38min