Thuban, in the constellation Draco — the role Polaris fills for us today.
Around 2560 BCE, Earth's axis pointed close to Thuban rather than Polaris, so Thuban was the era's pole star. Some researchers have proposed that the pyramid's narrow shafts were aimed at stars of that sky, including Thuban and Orion's Belt, but the originators and most Egyptologists treat that idea as a debated and likely coincidental correlation, since the shafts bend and are blocked. The genuinely settled part is the slow wobble of Earth's axis (precession), which has shifted the pole star over the past 4,500 years.
