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NGC 5822

 Open Clusters in LUPUS   

(Image centered at: ra 15h:04m / dec - 54º 21')

September 2021, Home Backyard in Martínez, Buenos Aires, Argentina

DATA

TYPE: Open Cluster

VISUAL BRIGHTNESS: 6,5

OBJECT SIZE: 35 arc minutes

DISTANCE:  3000 light years

IMAGE INFORMATION

SCOPE: 8" ORION OPTICS UK (Ultra Grade Optics) w/Televue Paracorr working at at f5,75

CAMERA: QSI 583 WS

MOUNT: SKY WATCHER NEQ6

FILTERS: Baader LRGB Set

SKY CONDITIONS: urban skies

EXPOSURES: LRGB (30,30,30,30)

OBJECT DESCRIPTION AND IMAGE SESSION

NGC 5822 is a large and bright open star cluster in the constellation of Lupus (The Wolf)

Located 2.6° south-southwest of magnitude 3.4 Zeta (ζ) Lupi. It is easily visible to the naked eye from a dark site, this magnitude 6.5 cluster explodes with detail through binoculars or any telescope. A 4-inch instrument at a magnification of 100x shows 50 stars. Don’t look for a center because the stars are evenly distributed across 35'. That’s an area 27 percent bigger than the Full Moon. Larger apertures add to the star count. (*)

(*) Source: Astronomy Magazine