9 Ceti [SEP] constellation
9 Ceti
9 Ceti is the Flamsteed designation for a star in the equatorial constellation of Cetus. It has an apparent visual magnitude of 6.39, which is below the limit that can be seen with the naked eye by a typical observer. (According to the Bortle scale, it is possible for some observers to see it from dark rural skies.) Based upon measurements made by the Hipparcos spacecraft, this star is around 68 light years away from the Sun. There is a magnitude 12.57 optical companion at an angular
Borrelly's Star is probably S Ceti (0h 23.8m / -9° 28'). Source: Deep-Sky Name Index 2000.0, Hugh C. Maddocks (Foxon-Maddocks Associates).
- Boyajian's Star (or Tabby's Star) is KIC 8462852, an F-type main-sequence star with a highly unusual light curve in the constellation of Cygnus, named after Tabetha S. Boyajian; its peculiar characteristics engendered speculation that a Dyson sphere of an extraterrestrial civilization had been discovered.
- Branchett's Object