Ceti Alpha
From Memory Alpha, the free Star Trek reference
Ceti Alpha is the primary star of the Ceti Alpha system.
In an alternate timeline where the Xindi destroyed Earth, Yerdrin Lek hid his ship just outside the chromosphere of Ceti Alpha, after he tailed Doctor Phlox to the system. Nevertheless, he was discovered when Enterprise picked up an intermittent duranium signature. (ENT: "Twilight")
It is unknown if this star is Alpha Ceti (Menkar), a red giant star (spectral class M2III) about 220 light years from Sol. Given the star's yellow appearance in "Twilight", this proposal is rendered rather unlikely, though.
