Site survey seeing tower

Site survey seeing tower

Downloadable versions (see NOAO Conditions of Use):
200 x 308 11 kb color JPEG(on this page)
400 x 616 33 kb color JPEG
1300 x 2000 304 kb color JPEG
1300 x 2000 2.5 Mb 8-bit color TIFF
1300 x 2000 7.6 Mb 24-bit color TIFF

The seeing tower used during the site survey to find the best location for the first US national observatory. This was taken on Chevelon Butte, Arizona, in the mid 1950s, but is very similar to the one used on Kitt Peak. From the private collection of Dr Helmut Abt.

Minimum credit line: Helmut Abt/NOAO/AURA/NSF (for details see Conditions of Use)

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