Chart showing atomic carbon-to-silicon ratio for various objects
SOFIA Comet Studies Explore the Carbon Gradient in the Solar System
Date

Atomic carbon-to-silicon ratio (C/Si) loci for (1) the bulk solid Earth; (2) the Sun; (3) meteoritic materials, including both non-carbonaceous and carbonaceous chondritic classes; (4) interplanetary dust particles; (5) SOFIA studied comets; and (6) the interstellar medium.

Credit
NASA/Greg Hogan/L. Proudfit/C. Woodward
Image Number
SCI2021_004