84" Coude spectrum of HR7306


About this image

Helmut Abt took test exposures of star HR7306 in September 1973 in order to assess the efficiency of the newly completed coude feed telescope relative to its `host', the 84-inch (now 2.1-meter) telescope. This unique combination of a dedicated telescope and a high-dispersion spectrograph has produced many scientific insights (and even papers) over nearly three decades. See the article in the NOAO March 2001 newsletter (PDF format only).

More: instruments page, history page.

Minimum credit line: Helmut Abt/NOAO/AURA/NSF

Downloadable versions:
738 x 200 16 kb B&W JPEG (on this page)
1476 x 400 49 kb B&W JPEG
1557 x 422 63 kb B&W JPEG
1557 x 422 296 kb B&W TIFF
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