Rubin Observatory photographed a cosmic seagull with a 144-megapixel test camera

A newly featured image of the Seagull Nebula is a good excuse to explore how Rubin’s much larger 3.2-gigapixel camera will repeatedly photograph the sky.

A newly published science feature highlights the Vera C. Rubin Observatory’s test image of the Seagull Nebula, IC 2177, roughly 3,700 light-years away. Pink emission from hydrogen and blue reflected starlight create the appearance of a giant bird’s head.

The photograph was made with a 144-megapixel commissioning camera during testing, not the final survey instrument. Rubin’s installed Legacy Survey of Space and Time camera is roughly 3,200 megapixels, designed to revisit large areas of the southern sky repeatedly.

The fascination is photographic as well as astronomical: thousands of exposures become a time-lapse map of changing objects. For a useful click, inspect the image at full resolution and learn how repeated surveys can reveal transient events that a single beautiful photograph would miss.

Open the observatory image and compare its color and structure with ordinary nebula photos; explore the Legacy Survey of Space and Time for a photographic project on an absurd scale.