NGC 6352 (AKA CALDWELL 81)

 OPEN CLUSTER IN ARA (THE ALTAR)

(Image centered at: ra 17 h:25 m / dec - 48º 25')

June - 2024, Home Backyard in Martinez, Buenos Aires, Argentina

DATA

TYPE: Open Cluster

APPARENT DIAMETER: 10.5 arc minutes

APPARENT MAGNITUDE (V): 7.8

DISTANCE: 18500 light years 

IMAGE INFORMATION

INSTRUMENT: 6" ORION OPTICS UK (Ultra Grade Optics) w/Sky Watcher Coma Corrector (0.9x) working at at f4.5

CAMERA: QHY 183 MONO

MOUNT: VIXEN GDPX, OAG with Starlight Xpress Lodestar

FILTERS: BAADER LRGB Set

SKY CONDITIONS: urban skies - Bortle 8

EXPOSURES: LRGB (45,45,45,45)

OBJECT DESCRIPTION AND IMAGE SESSION

NGC 6352 is the third globular cluster in size in the constellation of ARA after NGC 6397 (31 arc minutes) and NGC 6362 (15 arc minutes). This cluster is very loose and is likely to be the metal richest globular cluster at this time. According Forbes Duncan and Bridges Terry NGC 6352 is about 12,67 billions years old and present two distinct stellar population, being the second generation only 10 million years younger than the first. The globular was discovered by Scottish Astronomer James Dunlop on May 1826 from New South Wales in Parramatta Australia