RCW 49, the Whirling Dervish nebula

Constellation: Carina

RCW 49, also known as NGC 3247 and Gum 29, is a H-II region, associated with an open cluser, in the constellation Carina. It is located about 13’700 Ly away and 300-400 Ly across. Westerlund 2 is the young star cluster within Gum 29. The bright star in the WNW is part of the open cluster IC 2581.  Link to interactive sky chart.

Dates:

This image was taken in January and February 2026

Color palettes: SHO with RGB stars

Telescope & Mount:

PlaneWave CDK17 (F6.8) on a Software Bisque Paramount ME mount.

Imaging:

Camera: Player One Zeus-Mono (bin 2×2)

Data:
Ha: 60x300s
O3: 59x300s
S2: 60×300

Stars:
Red: 90x120s
Green: 90x120s
Blue: 89x120s

Total integration time: 20h 53′