Talk:Gamma Cephei

From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Astronomy / Astronomical objects  (Rated C-class, Mid-importance)
WikiProject icon Gamma Cephei is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
Taskforce icon
This article is supported by WikiProject Astronomical objects, which collaborates on articles related to astronomical objects.

Metallicity: 89%-168%[edit]

How can a star possibly be made out of more than 100% metal? (talk) 21:32, 28 October 2011 (UTC)

That's the abundance of metals (i.e. non-hydrogen/helium atoms) in the Star relative to the abundance of metals in the Sun. The abundance in the Sun is roughly 1.69%, so a metallicity of 168% solar means 1.69 × 1.68 = 2.84%. Regards, RJH (talk) 00:02, 8 January 2012 (UTC)

Orbital parameters of planet need update[edit]

News From The γ Cephei Planetary System AIP Conference Proceedings, Volume 1331, pp. 88-94 (2011) has better constraints and somewhat larger planet mass and lower eccentricity. Qemist (talk) 03:13, 10 August 2014 (UTC)