A quintet is a group containing five members. It is commonly associated with musical groups, such as a string quintet, or a group of five singers, but can be applied to any situation where five similar or related objects are considered a single unit.

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Galactic shock is shaping Stephan's Quintet in mysterious ways

James Webb Space Telescope spies massive shockwave and baby dwarf galaxy in Stephan's Quintet

Astronomers Spot Enormous Gas Cloud around Stephan’s Quintet

Expert Gives a Guided Tour of Stunning Webb Telescope Stephan’s Quintet Image

Stephan's Quintet: 'It's a Wonderful Life' — and a wonderful James Webb Space Telescope image!

Webb Captures Best Ever Image of Stephan’s Quintet

I love this image of Stephan's Quintet in NIRcam only (near-infrared). You can see individual stars in the closest galaxy in the image, NGC 7320, which is 40 million light years away. 12k x 12k resolution image in comments