header photo

Exoplanets

Yale Astronomy

CTIO Planet Search

We are surveying a sample of stars at Cerro Tololo Inter-American Observatory (CTIO), including Alpha Centauri A and B, using the 1.5-m telescope. In January 2011, we commissioned CHIRON, a new high-resolution, fiber-fed spectrograph. After reviewing the velocities, we brainstormed on several upgrades to CHIRON and are now achieving a Doppler precision that is better than 1 m/s.

CTIO
Photo by John Brewer