Exoplanetary Scratchpad

[SysBP Img]

Sunlike star with two planets more massive than Jupiter, one in about Mercury's position, and one at an Asteroid Belt-like position. A planet was predicted in between these two at Earth-like distances and later found, the first vindicated prediction since Neptune. This supports the "Packed Planetary Systems" theory. Some have suggested that it's one Earth year orbit period may mean its detection is due to Earth based observation errors.

HD 74156 System Web PagesEdit

HD 74156 System ArtworkEdit

HD 74156 System In the NewsEdit

Sample Category (Year Range)Edit

Terrestrial Planet Not Likely Between Giant Planets (2006)Edit

Planet d Discovered Near 1AU (2007)Edit

Planet d May be Due to Earth-based Observation Error (2007)Edit

Planet d Supports Packed Planet Theory (2008)Edit

HD 74156 System Fun LinksEdit

System FactoidsEdit

  • Sample Factoid
  • Sample Factoid

HD 74156 Star FactoidsEdit

  • Sample Factoid
  • Sample Factoid

Planet b FactoidsEdit

  • Sample Factoid
  • Sample Factoid

Map of HD 74156 SystemEdit

0.00 AU - HD 74156
x.xx AU - <periapsis/semi-major-axis/apapsis of sample planet>
x.xx AU - <habitability zone/stability zone/disk feature positions>

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