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. 2014 May 12;111(35):12661–12666. doi: 10.1073/pnas.1304215111

Table 3.

Orbital parameters of Beta Pictoris b

Orbital element Value* Units
a 9.040.41+0.82 AU
Ω 148.36±0.45 deg
i 90.69±0.68 deg
e 0.060.04+0.07
P 20.51.4+2.9 y
(1e)a 8.750.81+0.24 AU
(1+e)a 9.390.33+1.55 AU
*

The quoted value is the median (50th percentile) of the marginalized posterior distributions with errors representing the 68% confidence interval (16th and 84th percentiles). Derived quantities (period, P, and periapse and apoapse distances) are also listed.