Overview
- Researchers presented the survey at the American Astronomical Society meeting, detailing spectra for more than 2,100 stars within roughly 130 light-years.
- High-resolution data from CHIRON in Chile and TRES in Arizona enabled uniform, full-sky coverage using matched 60-inch telescopes.
- Analysis derived temperatures, ages, rotation rates, space motions, and magnetic-activity indicators critical to evaluating planetary environments.
- The team prioritized 529 low-activity targets for terrestrial-planet searches, while the NASA Exoplanet Archive lists only 44 confirmed hosts in the sample.
- K-type neighbors are cooler and dimmer than the Sun yet about twice as common and far longer-lived, positioning this dataset to guide extensive follow-up and future mission planning.