A small bright ring with a green-blue interior and red rim in the middle of a dark star field.
Ring Nebula (M 57) · © Martin Hudec

Nebulae

Ring Nebula (M 57)

A smoke ring in Lyra – the gas shell of a star at the end of its life.

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About the object

The Ring Nebula (M 57) in Lyra is a planetary nebula about 2,600 light years away. The ring is a shell of gas that we see as a loop; a tiny white dwarf sits at its centre.

How the image was made

Captured
20 August 2025
Total exposure
2 h 00 min
Calibration & stacking
Siril 1.4.0-beta3
Processing
Adobe Lightroom 8.5 (Windows)

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