DX3906
Names: DX3906Cheng Xin's starDX3906 systemS74390E2DX3906 solar system
First appears in Book 3: Death's End, chapter 6 (Crisis Era, Year 4 Yun Tianming)
Appearances
B1
B2
B3
What you know
Book 3: Death's End
- Ch 6DX3906 is a dark red, faint star about 286.5 light-years away, apparent magnitude 5.5, visible to the naked eye; title registered to Cheng Xin.
- Ch 6DX3906 was cataloged by Tycho Brahe but has no common name, only a number.
- Ch 11It is a faint red star with no planets, about thirty thousand years from Earth by the Staircase probe.
- Ch 17DX3906 has two planets, one Earth-like, making it extremely valuable; Tianming's gift to Cheng Xin, it lies within three hundred light-years of Earth.
- Ch 70DX3906 is now numbered S74390E2 and appears red on the star map; Cheng Xin and AA have a date there.
- Ch 71DX3906 is a Sun-sized, redder star with two solid planets, 286.5 light-years from the Solar System.
Connections
- related toCheng Xinowns the star
- related toYun Tianminggave the star to Cheng Xin
- includesPlanet Blue
- includesPlanet Gray
Key moments
- Book 3 · Ch 11Cheng Xin sees her star
After cloudy days, Cheng Xin and Vadimov find the faint red DX3906 with binoculars. Vadimov confides that he is the best candidate for the Staircase Program but is avoiding it.
- Book 3 · Ch 17Cheng Xin sells the planets, keeps the star
Awakened to resolve ownership of DX3906, Cheng Xin sells its planets to the UN but retains the star, and hires AA to run her company.
- Book 3 · Ch 70Halo enters lightspeed
Cheng Xin and AA select DX3906 as destination, and Halo accelerates to lightspeed, leaving the red two-dimensional Solar System behind.