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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 Pages[]

HD 74156 System Artwork[]

HD 74156 System In the News[]

Sample Category (Year Range)[]

http://sample_url.com
http://sample_url.com

Terrestrial Planet Not Likely Between Giant Planets (2006)[]

http://www.newswise.com/articles/view/522167/
http://sample_url.com

Planet d Discovered Near 1AU (2007)[]

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

http://arxiv.org/abs/0712.3862

Planet d Supports Packed Planet Theory (2008)[]

http://news.bbc.co.uk/2/hi/science/nature/7183563.stm http://uanews.org/node/17491

HD 74156 System Fun Links[]

System Factoids[]

  • Sample Factoid
  • Sample Factoid

HD 74156 Star Factoids[]

  • Sample Factoid
  • Sample Factoid

Planet b Factoids[]

  • Sample Factoid
  • Sample Factoid

Map of HD 74156 System[]

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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