RCW 22 (LBN 1086)

HII Region, Pyxis

February 2026. Observatorio El Sauce, Chile

RCW 22 (LBN 1086), is an Emission Nebula located in the southern constellation Pyxis. It is possibly a fragment of the Gum Nebula. The nebula has not yet been a subject in any scientific studies. It is located nearby Sh 2-312.
The RCW Catalog (from Rodgers, Campbell & Whiteoak) is an astronomical catalog of Hα-emission regions in the southern Milky Way. It contains 182 objects, including many of the earlier Gum catalogue (84 items) objects. The later Caldwell catalogue included some objects from the RCW catalogue. There is also some overlap with the Sharpless catalogue-2 (312 items), although that primarily covered the northern hemisphere, whereas RCW and Gum primarily covered the southern hemisphere. The RCW catalogue was compiled by Alexander William Rodgers, Colin T. Campbell and John Bartlett Whiteoak. They catalogued southern nebulae while working under Bart Bok at the Mount Stromlo Observatory in Australia in the 1960s.

Telescope: Planewave CDK17 (FR) f4.5
Mount: Astro Physics 1600GTO
Camera: QHY16200A/ Integral FW
Guider: Agena Starguide II / ZWO ASI178MM
Filters: Astronomik 36mm LRGB

L: 98×10 mins = 830 mins, R: 30×10 mins = 300 mins, G: 30×10 mins = 300 mins, B: 30×10 mins = 300 mins

Total Imaging Time: 31h 20m

Data Imaged remotely on 6 nights during February 2026.
Data acquisition & Processing by David Churchill.