Sodium in Extra-Solar Planet Atmosphere

Seth Redfield used HET's High Resolution Spectrograph to detect the well-known signature of sodium, a pair of absorption lines known as a "doublet," at specific wavelengths (indicated here in angstroms) in the atmosphere of the extra-solar planet HD189733b. Credit: S. Redfield/T. Jones/McDonald Obs.

Media Contact

Rebecca Johnson
ph: 512-475-6763
fax: 512-471-5060
rjohnson@astro.as.utexas.edu