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Kerkhov was a class J gas giant planet orbiting the star 40 Eridani C, This planet was located inside Vulcan space in the Vulcan sector of the Beta Quadrant and was approximately 16 light years from Sol. Its coordinates were 2701.6513. It was orbited by a single moon, which was the homeworld of the long-vanished Kerkhovian civilization.

Kerkhov planetary data

Planetary data for Kerkhov

The planet had a rotation period of 10.8 hours and a revolution period of 4,198.5 solar days. It had an estimated mass of 1.98921 x 1027 kilograms and an estimated age of 4.7 billion solar years. Its atmosphere was composed of 82% molecular hydrogen, 16% helium, 0.16% water, and 0.07% methane, with trace amounts of argon, ammonia, hydrogen sulfide, carbon monoxide, neon, xenon, and krypton. The mean surface temperature was -146.1 degrees Celsius.

In 2259, the USS Enterprise conducted a survey of the Kerkhovian moon and discovered that the Kerkhovians still existed, having migrated into interdimensional space. (SNW: "Charades")

The quadrant of this planet was inferred from the position of its star system in charts seen in several Star Trek: Strange New Worlds episodes.
In a display graphic seen aboard the shuttle Cervantes, this planet was identified as class L. [1]
The current location of Vulcan (Ni'Var) in the Beta Quadrant was based on the most recent star charts seen in Star Trek: Strange New Worlds and Star Trek: Section 31.