Astronomy Picture of the Day: 19/01/2026

Object Name: IC2944, Running chicken

Copyright: Dean Songberg

Location: Bega, NSW

Connect: www.songbergphotography.com

Skill level: Advanced (5+ years)

Image Title

The Running Chicken

Artists' statement

IC2944 in SHO with RGB stars

How This Image Was Captured

Gear used

ZWO1600mm pro, Antila SHO and RGB filters, Askar FRA400, Skywatcher HEQ5 Pro mount, Asiair plus.

Processing notes

Stacked in Astro pixel processor, processid in Seti astro suite pro, final edits done in photoshop.

Exploring The Running Chicken Nebula

The Running Chicken Nebula, catalogued primarily as IC 2944 (with associated regions including IC 2948), is a large H II region and active star-forming complex located in the constellation Centaurus, at a distance of approximately 6,500 light years (~2 kpc).

It is composed predominantly of ionised hydrogen gas, excited by intense ultraviolet radiation from embedded young, massive O- and B-type stars, most notably those within the open cluster Collinder 249. This radiation ionises the surrounding interstellar medium, producing strong H-alpha emission that defines the nebula’s extended structure. The blue regions visible in the nebula arise from reflection nebulosity, where dust grains scatter starlight from nearby hot stars.

The nebula also contains prominent dark globules, often referred to as Bok globules, dense, cold concentrations of molecular gas and dust that absorb background light. These structures are potential sites of future star formation, although many are subject to photoevaporation due to the harsh radiation environment. Stellar winds and radiation pressure from the central massive stars actively sculpt the gas, creating cavities, filaments, and sharp ionisation fronts.

Overall, IC 2944 represents a textbook example of feedback-driven star formation, where newly formed massive stars both trigger and inhibit further stellar birth. Its complex morphology provides valuable insight into the interaction between stellar radiation, interstellar gas dynamics, and the lifecycle of molecular clouds within the Milky Way.

Behind the Selection

This image showcases the Running Chicken Nebula (IC 2944) as a richly detailed and active region of the southern sky, revealing the interplay between glowing gas, dark dust, and newly formed stars. Vivid bands of ionised hydrogen trace the nebula’s broad structure, while cooler blue tones mark regions where starlight is reflected by surrounding dust. Embedded star clusters carve cavities and edges into the cloud, shaping its intricate, flowing appearance.

The strong contrast between luminous filaments and inky dust lanes draws attention to the nebula’s turbulent nature, highlighting areas where star formation is ongoing. With its layered textures, depth, and colour, the image captures both the visual drama and the underlying astrophysical processes at work, offering a compelling view into one of the Milky Way’s most expressive stellar nurseries.