NGC 3199 

 EMISSION AND REFLECTION NEBULA IN CARINA (THE KEEL)   

(Image centered at: ra 10 h:17 m / dec - 57º 55')

CLICK THE IMAGE FOR A LARGE VIEW

April  2022, Sarandi, Gualeguayachu, Entre Rios, Argentina

DATA

TYPE: Emission & Refection Nebula

APPARENT DIAMETER: 22 arc minutes

VISUAL BRIGHTNESS: n/a

DISTANCE: 12,000 light years 

IMAGE INFORMATION1

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

CAMERA: QSI 583 WS

MOUNT: SKY WATCHER NEQ6, OAG with Starligh Xpress Lodestar

FILTERS: Baader LRGB Set

SKY CONDITIONS: rural skies - Bortle 4 to 5

EXPOSURES: LHARGB (40,60,40,40,40)

OBJECT DESCRIPTION AND IMAGE SESSION

NGC 3199 is a bright emission and reflection nebula located 12,000 light years away in the southern constellation of Carina (the Keel). The nebula has an arc shaped form and covers a distance of 75 light years. Near the center of the ring is located a "short - lived" Wolf Rayet star HD 89358 or WR18. These type of stars are hot, luminous and are loosing mass in the form of stellar wind at a high rate.  Apparently the bow shaped arc was formed out of the stellar wind ejected from WR18. These winds can create strong shockwaves when they collide with the comparatively cool interstellar medium, causing them to heat up anything in their vicinity. 

NGC 3199 was discovered by Scottish astronomer James Dunlop in 1826 from New South Wales in Australia. John Herschel catalogued this object in April, 1834

A very humid and hazy night sky with regular seeing