kb/data/en.wikipedia.org/wiki/EXPRES-0.md

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---
title: "EXPRES"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/EXPRES"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T09:40:44.606027+00:00"
instance: "kb-cron"
---
The EXtreme PREcision Spectrograph (EXPRES) is an optical fiber fed echelle instrument designed and built at the Yale Exoplanet Laboratory to be installed on the 4.3-meter Lowell Discovery Telescope operated by Lowell Observatory. It has a goal to achieve 10 cm/s radial velocity precision. It uses a laser frequency comb to calibrate the primary wavelength for EXPRES.
== See also ==
ESPRESSO spectrograph
HARPS3
== References ==