The 4.0-m R-C Spectrograph

Note: This page is under development and the information it contains may be incomplete. Please contact the staff for further details.

Exposure time calculator - this program is in need of verification, so please use at your own risk until further notice.

Basic Description of the Spectrograph

A reference manual describing the spectrograph optics, gratings, camera, CCD, etc.

Arcon with the 4.0-m R-C Spectrograph

This manual covers the ARCON-IRAF software interface that is used for acquiring images and controlling the spectrograph.

Acquisition & Guiding

Description of the Field Acquistion and Slit Viewing TV & the Offset Guider

Quick Reference

Useful numbers collected in one place.

Comparison Atlases

Several old but useful HeAr and HeNeAr comparison line atlases.

Recent Developments:

The most up to date data on the performance of the spectrograph: Changes in and additions to cameras, CCDs, gratings, etc... are available here. Visitors and prospective users should be sure and read this information carefully.

Instrument Control Software

Virtual Smart Motor Controller (ARCON-IRAF)

ICS Info (ARCON-IRAF)

The basic optical characteristics of the spectrograph will be found in the CTIO Facilities Manual. This information is obsolescent and is often superceded by newer data in the "Recent Developments" section above.