title: Orbital Period (album)
text: # Orbital Period (album)
  
  Professional ratings :
  
  | Review scores ||
  | - | - |
  | Source | Rating |
  | AllMusic | |
  
  Orbital Period is the fifth studio album by Bump of Chicken, released on December 19, 2007. The album features the singles "Planetarium", "Supernova/Karma", "Namida no Furusato", "Hana no Na", and "Mayday". Orbital period became the best-selling album two days in a row at debut, according to Oricon Style. It was the second best-selling album on its debut week.
  
  ## Personnel
  
  * Fujiwara Motoo — vocals, guitar
  * Masukawa Hiroaki — guitar
  * Naoi Yoshifumi — bass
  * Masu Hideo — drums
  