Scientists confirm evidence of a new class of galac­tic nebulae

Discovery image of the nebula. For this image, 120 individual exposures had to be combined to obtain a total exposure time of 20 hours. The images were taken over several months from Brazil.

For the first time, scientists⁠—starting from a discovery by scientific amateurs⁠—have succeeded in confirm evidence for a fully developed shell of a common-envelope system (CE), the phase of the common envelope of a binary star system.

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