The Second Earth Initiative Spectrograph

A next-generation extreme-precision radial velocity spectrograph

2ES

A next-generation extreme precision spectrograph

The Second earth initiative spectrograph

2ES is a next-generation extreme-precision radial velocity spectrograph that will be installed at the MPG/ESO 2.2m Telescope on La Silla, Chile (Southern Hemisphere). 2ES will be dedicated to a > 5-year observing program with access to the majority (2/3) of the telescope time with the goal of discovering temperate terrestrial Earth-mass planets in the habitable zone around the brightest solar-type stars in the sky. 

A Next-Generation Extreme Precision Spectrograph

High observing cadence

2ES will have a high observing cadence and a uniform distribution of observations over a long baseline

Extreme RV stability

2ES will have extreme RV stability (the semi-amplitude of Earth-analogs is ~10 cm s-1)

High spectral resolution

2ES will have a resolution of 120,000

high signal-to-noise spectra

The 2ES targets will be the brightest solar-type stars in the Southern Hemisphere ensuring high SNR spectra