title: Sadao Sei
text: # Sadao Sei
  
  Minor planets discovered: 1 :
  
  | 2909 Hoshi-no-ie | 9 May 1983 | MPC |
  | - | - | - |
  
  Sadao Sei (清 貞雄, Sei Sadao) is a Japanese astronomer who discovered an asteroid in 1983.
  
  He is credited by the Minor Planet Center with the discovery of 2909 Hoshi-no-ie, a main-belt asteroid of the Eos family, which he named after his observatory. The meaning of "Hoshi-no-ie" is "a star house". Naming citation was published on 17 February 1984 (M.P.C. 8544).
  
  