Lambda Ophiuchi

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What Wikipedia says

λ Ophiuchi, Latinized as Lambda Ophiuchi, is a quadruple star system in the equatorial constellation of Ophiuchus. It has the traditional name Marfik , which now applies exclusively to the primary component. The system is visible to the naked eye as a faint point of light with an apparent visual magnitude of 3.82.

Excerpt from the Wikipedia article “Lambda Ophiuchi”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg), CC BY 3.0, via Wikimedia Commons.