Sigma Andromedae (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sigma Andromedae" in Swedish language version.

refsWebsite

Global rank Swedish rank

3^rd place

37^th place

books.google.com

Lang, Kenneth R. (2006), Astrophysical formulae, Astronomy and astrophysics library, "1" (3rd), Birkhäuser, ISBN 3-540-29692-1, https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41 . The radius (R_*) is given by:
${\begin{aligned}2\cdot R_{*}&={\frac {(41.3\cdot 0.465\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 4.13\cdot R_{\bigodot }\end{aligned}}$