Barnard 30

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Barnard 30 is a dark cloud in the Lambda Orionis ring, in the Orion constellation. It lies about 1,300 light-years from Earth, north of the bright star Meissa (Lambda Orionis). It’s one of the places in the Lambda Orionis Ring where young stars are concentrated, along with the Lambda Orionis cluster and Barnard 35.

The cloud hosts newborn stars, jets from young stars called Herbig-Haro objects, brown dwarfs, and several T Tauri stars. Notable young stars include HK Orionis, a Herbig Ae/Be star, and HI Orionis, a T Tauri star.

Barnard 30 is about 2–3 million years old, much younger than the central Lambda Orionis cluster. The shape and-star formation activity are likely influenced by the nearby massive star Meissa, which helps trigger new stars in the cloud. A possible supernova around a million years ago that helped form the Lambda Orionis ring may also have contributed to star formation here.

The region includes a reflection nebula. The associated emission region has low brightness and covers a large area of the sky. Because it lies in the same part of the sky as the famous Orion Nebula, Barnard 30 is rarely photographed.