Rasalhague

Rasalhague, also known as Alpha Ophiuchi, was a binary star system in the Alpha Quadrant. The stars were named Rasalhague (the proper name for Alpha Ophiuchi A) and Alpha Ophiuchi B. Rasalhague was a second-magnitude white star and the brightest star in the constellation Ophiuchus. (ENT: "Cold Front"; PIC: "Disengage")

Stellar cartography

The Rasalhague system was visible from Earth in the constellation Ophiuchus. it was approximately 48.6 light years from Sol.

In 3191, this system's location was labeled on a star chart. (DIS: "Red Directive")

This star system was only mentioned in writing.
The location of this star system was seen on the bridge of the SS Eleos XII on what appears to be an updated chart from Star Trek: Star Charts. Dave Blass published pictures of the set on his website.
Information on this system was derived from the reference works Star Trek: Star Charts and Stellar Cartography: The Starfleet Reference Library and real-world sources. The reference works were used extensively in the creation of star charts seen in Star Trek: Discovery, Star Trek: Picard, Star Trek: Strange New Worlds, Star Trek: Prodigy, and Star Trek: Lower Decks. The real-world information added to the article was current as of 2025.

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