Building an Astronomical Spectrograph with a Microscopic Budget

Details Building an Astronomical Spectrograph with a Microscopic Budget Building an Astronomical Spectrograph with a Microscopic Budget

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.d1023d&link_type=abstract

American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #D1.023

Physics

Scientific paper

An astronomical spectrograph optimized for visible wavelengths was designed and constructed by physics students. The design required the constraints of budget and time be met, while providing a functional instrument for instruction and undergraduate research. The components of the spectrograph consisted of a first-surface mirror, a commercial SLR camera lens, a reflective diffraction grating and a collimating lens. The lenses were salvaged from available resources, leaving the only major expense as the grating and mirror. Processing software was acquired through free-domain sources, applicable to the available CCD capabilities. The working spectrograph was assembled for less than $400 due to its simplicity of design and the availability of public domain software.

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