User's Guide to ShARCS

Table of Contents

Summary Table
Detector Characteristics
Filters, Grisms, Apertures, Polarimeter
Software Overview
Data Taker GUI
Filter & Aperture Wheel GUI
Image Display GUI
Sound server
Temperature Monitor
Observing Procedures and Tips
FITS Header Keywords

Data Archive
Mt. Hamilton Homepage


ShARCS (Shane Ao infraRed Camera-Spectrograph) is a near infrared camera designed for use with the Shane Adaptive Optics system at the Cassegrain focus of the Shane 3-meter Telescope. ShARCS is equipped with a number of different filters (both broad and narrow band), grisms for spectroscopic work, and a polarimeter.

ShARCS has been in operation since April 2014 and utilizes a H2RG detector. Field of view is about 20 arcseconds and pixel scale is 0.033 arcsec/pixel. A summary of its characteristics are available in ShARCS_specs.pdf. Additional anaylsis of sensitivity and expected performace calculated by Srikar Srinath is available at

ShARCS can only be used in conjuction with of the Shane Adaptive Optics system and is available to the University of California astronomical community by subscription.
Follow these links to:

3-m Time Allocation Policy
Observing Time Request Forms

All new users must be checked out by a resident astronomer on their first night. Please request support on your time application.

Please direct questions to a Mount Hamilton support astronomer

Last modified: Sun Mar 13 13:00:51 PDT 2016