The Sun, Measured: Iron, Carbon, Nitrogen and Oxygen
The calibration star is done. [Fe/H] = +0.017, C = 8.430, N = 7.883, O = 8.660 and C/O = 0.59 — every headline within 0.053 dex of Asplund et al. (2021), each with a full sixteen-component uncertainty budget.
Read entry →Why We Started With 55 Cancri A
A metal-rich K dwarf, 5 planets, and one contested C/O ratio. Here's why Copernicus was the right first star for The Exoplanet Codex.
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