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HENIZE 2-116 (AKA WRAY 16-163)

PLANETARY NEBULA IN CIRCINUS (THE COMPASS)

(Image centered at: ra 15 h: 06 m / dec -61º 21')

CLICK THE IMAGE FOR A WIDE FIELD VIEW

July 2025, Home Backyard in Martinez, Buenos Aires, Argentina

DATA

TYPE: Planetary Nebula 

APPARENT SIZE: 51 arc seconds (*)

APPARENT MAGNITUDE (V): 14 (*)

DISTANCE: 6500 light years (2kpcs) (*)

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: SKY WATCHER NEQ6, OAG QHY 5II

FILTERS: OPTOLONG LRGB Set + Antlia Ha 3 nm; OIII nm

SKY CONDITIONS: urban skies - Bortle 8

EXPOSURES: LHAO3RGB (45,60,60,45,45,45)

OBJECT DESCRIPTION AND IMAGE SESSION

Henize 2 116 or Wray 16 163 is a small Planetary Nebula situated 3 degrees east from Rigel Kentaurus in the southern Constellation of Circinus. This area has a lot of absorption spectra, hence stars were difficult to process. This Planetary Nebula is rather small, however some details were revealed including faint structure in the OIII light frequency. It has an outer circular shell responding in Ha, while the inner structure reveal some OIII material. Henize 2 116 was discovered by American Astronomer; Space Scientist and Astronaut Karl Gordon Henize in 1964 from Canberra Australia. There are not many images in RGB + Narrowband around the web and also it was difficult to find more data on this Planetary

(*) Information gathered from Deep Sky Corner and SIMBAD Data