CFHT and its communities prepare the future of the Observatory

In addition to serving the community of today's users, CFHT is constantly involved in developing new projects and getting prepared to welcome the instrumentation for tomorrow's astronomy.

Future Instruments


SITELLE is an imaging Fourier Transform Spectrograph which design is based on an instrument, SpIOMM, currently in operation at the Mt Mégantic Observatory.
SITELLE will provide a 15' field of view with a 0.8"/pixel spatial sampling and a spectral resolution of up to 5000. It is led by the Université Laval (PI: Laurent Drissen) and will be shipped to CFHT in 2014.


SPIRou is a cross-dispersed echelle spectrograph and polarimeter covering the near-infrared domain up to the K band with a resolution over 70,000. It is designed to provide radial velocity determinations with a 1m/s accuracy.
SPIRou just passed its final design review in April 2014 and starts construction, as a Guest Instrument at CFHT. The international SPIRou consortium is led by LATT/IRAP in Toulouse, France (PI: J.-F. Donati).

Ongoing Developments


GRACES is a project to feed the ESPaDOnS spectrograph with the neighbor Gemini telescope via a 270-m fiber link. It is an experimental development, done in collaboration between Gemini, CFHT and NRC-Herzbeg in Victoria, Canada. It is at the bench validation stage (March 2014).


OPERA is the Open-source Pipeline for ESPaDOnS Reduction and Analysis. The project page is here and the software can be downloaded from Sourceforge here. It is in a stage of optimization and validation (February 2015).

MegaCam Upgrade

New filters will soon be available on MegaCAM: new large-band filters and several new narrow-bad filters. The first new filters will be implemented at the end of 2014.


The Maunakea Spectroscopic Explorer is a proposed upgrade of CFHT into a 10m-class dedicated spectroscopic facility. Full details can be found at

Previous developments

Dome venting - A project to improve the dome seeing

OAP - Observatory Automation Project

DANCE - Dual Amplifier New CCD for ESPaDOnS

`OHANA - Optical Hawaiian Array for Nanoradian Astronomy

CLOE - The CFHT-LSP On-sky Experiment

Gyes - a wide-field multi-object spectrograph project

'IMAKA - a high-resolution wide-field optical imager