Night Sky Brightness at Cerro Pachon

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Cerro Pachon Model 2:

Our model 2, with results scaled from model 1, uses the same light output per person figure as model 1, but a much more agressively increasing population model. We do not think this is very likely, but it is the model we will use for planning purposes.

City/Year 1990 2000 2010 2020 2030 2040
LaS-Coq 220K 240K 307K 393K 503K 644K
Andacolla 12K 12K 14K 16K 18K 21K
Vicuna 20K 22K 28K 35K 40K 50K
Ovalle 105K 110K 120K 140K 165K 200K

Results:

Figure 5

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Alistair Walker awalker@noao.edu
Chris Smith csmith@noao.edu