ta Carinae Nebula — NGC 3372

The Eta Carinae Nebula is one of the most spectacular emission nebulae in the southern sky, a vast and turbulent star-forming region located in the constellation Carina. This image highlights the complex structure of the nebula, with glowing hydrogen-rich clouds, dark dust lanes, and intricate filaments surrounding the intense central region.

At the heart of the scene lies the famous massive stellar system Eta Carinae, embedded within a dramatic landscape shaped by powerful stellar winds, intense radiation, and past eruptions. The surrounding nebulosity reveals a mix of delicate detail and large-scale structure, from dense dusty regions to sweeping clouds of ionized gas.

This image combines LRGB data with a significant H-alpha contribution to bring out the fine structure and depth of the emission regions. The final integration includes 10 hours and 50 minutes of total exposure time across 130 subframes, with 8 hours and 5 minutes dedicated to H-alpha. The additional narrowband signal helped enhance the intricate filaments and glowing hydrogen clouds while preserving the broadband colour and star field.

For this version, I aimed to preserve the depth and texture of the nebula while keeping a natural sense of contrast between the bright core, the darker dust features, and the surrounding faint emission. Processing this target was a real pleasure, as every stretch revealed more layers of dust, gas, and subtle structure within one of the southern sky’s most remarkable nebulae.

Acquisition details

Luminance: 45 min

Red: 40 min

Green: 40 min

Blue: 40 min

H-alpha: 8 h 5 min

Total exposure: 10 h 50 min

Subframes: 130

Average subframe duration: 300 sec