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o1d_dude
o1der than dirt
Reged: 10/03/07
Posts: 1400
Loc: The Big Tomato, California
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Re: Light Pollution Rating
01/18/08 06:58 PM
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I live in the state capitol of Kuh-lee-FAWN-ya.
Similar to San Francisco where the City and County of are one and the same, the Sacramento metropolitan area extends approximately a 45 minute drive generally from SW to NE and extends into the next county.
My home is in the SE part of the county and although it was once on the outskirts of town, it is now sort of close-in relative to the expansion of housing into the farm and ranch lands.
The main light dome renders pretty much everything to the north and west of me useless for observing purposes. To the south is another expansion area and a "large" small town. The boundaries are not between cities and towns are not obvious and unless you spot the city limits sign, you will believe yourself to be in the same city. Of course, every street is well lit for safety and security.
From my backyard, I'm able to observe a quadrant of sky from zenith east to the tops of the trees and from zenith south to the level at which the light dome starts to wash the sky out. From zenith north and from zenith west, I have about 10-20 degrees of relatively dark sky. All of this amounts to approximately one fourth of the available sky.
I consider myself fortunate to have that much reasonably viewable sky to observe.
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Kit
"There's only two things that excite a man, expensive toys and real expensive toys." - Red Green
* A bunch of old ATM stuff that cost me next to nothing
* A bunch of new commercial stuff that cost me an arm and a leg
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