[AZ-Observing] Re: Illuminated Billboards
- From: "Wayne (aka Mr. Galaxy)" <mrgalaxy@xxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Fri, 18 Nov 2011 19:10:27 GMT
Benson, AZ 85602
hm ph: 520-586-2244 You mean you're getting a SunTan on the SanTan! Was that
SPF 202 you were using? Sorry, couldn't resist...
Clear skies,
Wayne (aka Mr. Galaxy)
---------- Original Message ----------
From: <beevo1@xxxxxxx>
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Illuminated Billboards
Date: Fri, 18 Nov 2011 11:46:34 -0500
My biggest question is why the light output can't be reduced after sundown? I
drive by the light dealer signs on the 202 SanTan and could read a newspaper
inside my car if Iweren't driving....
Beevo
K7BVO
---- Dan Heim <dan@xxxxxxxxxxxxx> wrote:
============What a coincidence. My Sky Lights blog post this Monday was on
exactly
this topic. See: http://heimhenge.com/skylights
Stan makes exactly the same point I did. Even if they were forced to go
to a static image, or one that rotates daily (changing at, say, 3 am so
NOT to distract drivers), they still put out a lot of light above the
horizontal ... and that's the real issue for astronomy. These signs
can't be "shielded" like a properly built conventional billboard with
downward-pointing top-mounted lights. Of course, very few conventional
billboards are constructed that way, as it's cheaper to replace bulbs
mounted at the bottom.
Dan Heim
On 11/18/2011 8:08 AM, Stan Gorodenski wrote:
> I just read the court of appeals has ruled the illuminated billboards
> are illegal because they are intermittent lighting. Even if this
> decision holds, it seems to me all they have to do is revert back to
> one constant displayed image and they would still be polluting the night
> skies.
> Stan
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