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Southern Arizona Section of IDA (SA-IDA) "Light Pollution" - The Only Pollution that Costs More to Perpetuate than to Eliminate! |
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The Good, The Bad, and The Illegal
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Campus Night time Photos - top of Science Bldg Photos were taken on Nov. 8, 2004, about 7 PM from the roof top (13th floor) of the University of Arizona Gould-Simpson (Science) Building located at 1040 E. 4th Street, Tucson, AZ. Camera was a digital Nikon Coolpix 995, all with 1 second exposures, f2.6, 8mm (by Joe Frannea) Image Size-Photos were taken in UXGA mode (1600 x 1200 pixels), Fine .jpg compression (approx. 1/4) which are about 800k each. Photos have been reduced in size to about 150k for this display. Photos start from a view looking SE and go clockwise 360 degrees (S-W-N-E).
Light Meter Readings from a Extech Instruments (model 403125) Light ProbeMeter were taken one foot above the roof parapet wall (about 4' high). - Pointing South: 0.08 fc or foot candles (towards 6th Ave. parking garage) - Pointing West: 0.06 fc (towards dorms and Euclid/Tyndall parking garage) - Pointing North: 0.05 fc (towards old part of campus, Centennial Hall/Museum) - Pointing East: 0.11 fc (towards lighted sports field at Campbell) Click on any photo for a larger view... Some of the above stitched together... S - W - N -E |
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