Globular Cluster NGC 6366

NGC 6366
NGC 6366: Section of the colorized DSS2 [147]


This globular cluster was discovered on 12 April 1860 by the German astronomer August Winnecke using his private 3 inch Merz refractor while he was working at Pulkowo Observatory south of St. Petersburg. [277]

Physical Properties

NGC 6366 is a metal-rich Galactic globular cluster and the fifth closest to the Sun. Its kinematics suggests a link to the galactic halo, but its metallicity indicates otherwise. A presence of second generation stars is not evident. [590]

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation NGC 6366
Type GCL (XI)
Right Ascension (J2000.0) 17h 27m 44.3s
Declination (J2000.0) -05° 04' 34"
Diameter 13 arcmin
Visual magnitude 9.5 mag
Metric Distance 3.500 kpc
Dreyer Description F, L, vlbM (Auw 36)
Identification, Remarks GC 4301; GCL 65

Finder Chart

The globular cluster NGC 6366 is located in the constellation Ophiuchus. The best observation time is in the months March to August.

Finder Chart Globular Cluster NGC 6366
Globular Cluster NGC 6366 in constellation Ophiuchus. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

Objects Within a Radius of 15°