Size 4

The N-One sector, a huge area equal to one twenty-fourth of a hemisphere, had been partly pressurized and heated, so at least Teela didn't have to wear a vac suit to work anymore. Thank the stars for that; she was sick to death of ending each day fatigued by the effort of manipulating the stiff joints and servos, the limited vision, and the inability to scratch-to name only a few problems.

(...)

Sector N-One was shaped like a large crescent slice of juicemelon, cut in half midway. It was thirty-one kilometers wide at the base, which would be the equator when the station was finished, narrowing almost to a point only a few dozen meters wide at the other end, and just over ninety-four klicks long. Most of the sectors would be identical in this hemisphere, save for a select few and including, of course, those through which the superlaser would be constructed.

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Death Star, Part 1 Chapter 15