Open Cluster NGC6229
Globular cluster NGC 6229 was discovered by William Herschel on May 12, 1787, and first taken for a planetary nebula from his visual impression. Thus he cataloged it as H IV.50. It was only revealed as a "very crowded cluster" by d'Arrest in the mid 19th century. Dreyer's NGC lists it as globular cluster.
The difficulty to resolve this cluster becomes reasonable when looking at its large distance of about 100,000 light years. It's on the fith position considering object from NGC/IC catalog.
Photo Details
Telescope: Celestron C8N (1000mm)
Camera: Sbig ST-2000XM, Sbig Filter wheel, Baader 1.25" HLRGB filters
Mount: NJP Takahashi
Guiding: Self-guided
Exposure: L 12x480sec, R 4x480sec, G 4x480sec, B 4x480sec
When: Spring 2014
Other information: good transparency, good seeing, partially from the city of Tarnow