A round nebula in pink and blue tones with a dark cavity in the centre and stars inside.
Rosette Nebula (NGC 2244) · © Martin Hudec

Nebulae

Rosette Nebula (NGC 2244)

A flower of gas with a star cluster glowing at its heart.

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About the object

The Rosette in Monoceros lies about 5,000 light years away. The star cluster NGC 2244 at its centre is so young and hot that its radiation and winds have blown a large cavity in the surrounding cloud – which is why the nebula forms a ring.

How the image was made

Captured
3 November 2025 (start, several nights)
Total exposure
6 h 00 min (120 × 180 s)
Camera
ZWO ASI2600MC Pro
Mount
ZWO AM5N
Location
Banská Bystrica, Slovakia (home observatory)
Calibration & stacking
Siril 1.4.0-beta4
Processing
Adobe Lightroom 9.0 (Windows)

Data from the original file’s metadata or from the author.