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Natural Lightscape

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SHANEA

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Natural Lightscape
« on: April 05, 2006, 11:55:12 PM »
When I was poking around the NPS site for information on jobs, I ran across this interesting link.

Quote
DID YOU KNOW?
Two–thirds of Americans cannot see the Milky Way from their backyard, and 99% of the population live in an area that scientists consider light polluted.


http://www2.nature.nps.gov/air/lightscapes/



Be sure and check out


and http://www.lightpollution.it/worldatlas/pages/fig1.htm

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Offline 10ftTall&BulletPrf

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Natural Lightscape
« Reply #1 on: April 06, 2006, 09:14:11 AM »
"You may all go to work and I will go to Big Bend" - If Davy Crockett were alive today.

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Offline Joe

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Light Pollution
« Reply #2 on: April 06, 2006, 10:05:30 AM »
I've supported the International Dark-Sky Association for many years.  They are doing what they can to preserve our night skies.
The real desert is a land which reveals its true character only to those who come with courage, tolerance and understanding. - Randall Henderson

http://www.bigbendchat.com/portal/forum/el-saloacuten/joe-a-memorial/

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Offline Bobcat

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Re: Light Pollution
« Reply #3 on: April 06, 2006, 10:15:34 AM »
Quote from: "Joe"
I've supported the International Dark-Sky Association for many years.  They are doing what they can to preserve our night skies.


Those brightly lit countries should be encouraged to turnoff their lights at night : !
Location Location Location

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Offline Joe

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Astronomy in Big Bend and other parks
« Reply #4 on: April 06, 2006, 10:42:00 AM »
I know of several national parks that have extensive astronomy programs. Here are the links:

Chaco Canyon's Night Sky Program

Bryce Canyon's astronomy programs Link corrected by Moderator

Grand Canyon Star Party

Since Big Bend has some of the darkest skies in the country, I always wished that the park could have more of an astronomy program.  I know the park has at least one telescope, and sometimes one of the interpreters offers an evening astronomy program.  

Tomorrow is one of the two Big Bend Star Parties that the Big Bend Natural History Association offers each year, though I don't know if they had enough people signed up for it to take place.

Perhaps in the future a group of volunteers with telescopes and some knowledge of the night sky could coordinate with Big Bend to do some astronomy programs?  If anyone's interested, let me know.
The real desert is a land which reveals its true character only to those who come with courage, tolerance and understanding. - Randall Henderson

http://www.bigbendchat.com/portal/forum/el-saloacuten/joe-a-memorial/

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Offline randell

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Natural Lightscape
« Reply #5 on: April 06, 2006, 11:42:35 AM »
When I'm in Big Bend, I would lay on my back  and stare at the sky all night.  It's more hypnotizing than staring at the campfire.
There's nothing like a good quest to get you intimate with a place. - Tom Clynes

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Offline Joe

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Brewster County Outdoor Lighting Ordinance
« Reply #6 on: April 06, 2006, 11:43:02 AM »
Here're the lighting rules for Brewster County:

ADOPTED UNANIMOUSLY BY COMMISSIONERS COURT JULY 30, 2001

PROPOSED ORDER
 
State of Texas
In the Commissioners Court of Brewster County, Texas
 
Orders Regulating Outdoor Lighting in Brewster County Texas

Brewster County Commissioners Court adopts these Orders pursuant to §234.002, Local Government Code, VTCA, for the purpose of preserving dark skies and protecting the continued viability of McDonald Observatory.
 
I. DEFINITIONS - In these orders:

1.1 "Outdoor lighting" means any type of lighting, fixed or movable, designed or used for outdoor illumination of building or residences, including lighting for billboards, streetlights, searchlights used for advertising purposes, externally or internally illuminated on or off-site advertising signs, and area-type lighting.

1.2 "Installed" means the initial installation or replacement of outdoor lighting as defined herein made subsequent to the enactment of these orders and shall not pertain or apply to outdoor lighting existing at the time of enactment of these orders.

1.3 "Fully shielded" means that lighting fixtures shall be shielded in such a manner that light rays emitted by the fixture, either directly from the lamp or indirectly from the fixture, are projected below the horizontal plane running through the lowest point on the fixture where light is emitted.

1.4 "Partially shielded" means that those fixtures shall be shielded in such a manner that the bottom edge of the shield is below the plane centerline of the light source (lamp), minimizing light above the horizontal.

1.5 "Spot light" means a light fixture having a narrow beam.

1.6 "Flood light" shall mean a light fixture having a wide beam.

2. GENERAL REQUIREMENTS

2.1 New lighting installations: All outdoor lighting fixtures installed after November 1, 2001 shall be fully shielded, except incandescent fixtures one hundred fifty watts or less or from other sources seventy watts or less which shall be partially shielded.

2.2 Recreational facilities: No outdoor public recreational facility shall be illuminated by nonconforming means after midnight except to conclude a specific recreational activity in progress.

2.3 Outdoor building or landscaping illumination: The unshielded outdoor illumination of any building, landscaping or signing is prohibited except with incandescent spot lights of less than 150 watts which shall be, at a minimum, partially shielded to prevent light from being emitted away from the target of illumination.

2.4 Spot lights and flood lights: For spotlights and flood lights mounted overhead on poles and used for area lighting, the axis of illumination shall be adjusted to an angle not more than 20 degrees from the vertical line between the fixture and the ground (see Exhibits 1 and 2)

2.5 Mercury vapor: The installation of mercury vapor fixtures is prohibited effective November 1, 2001.

2.6 Searchlights: The operation of searchlights for advertising purposes is prohibited.

3. EXEMPTIONS

3.1 Any individual may submit a written request to the County Commissioner in whose precinct the lighting sought to be exempted is located for a temporary exemption from the requirements of these orders: The request for the temporary exemption shall contain, at a minimum, the following information:

           A. Proposed use of outdoor light involved and reason an exemption is needed.
           B. Type of lamp to be used.
           C. Type of light fixture sought to be exempted.
           D. Total wattage of lamp or lamps proposed to be exempted
           E. Proposed location of outdoor light.
           F. Beginning and ending date of proposed exemption.

3.2 If the Commissioner to whom the request for temporary exemption finds that the request is reasonable, that Commissioners may grant the temporaryexemption.

3.3 No temporary exemption shall be granted for a period greater than six (6) months and all temporary exemptions shall be granted in writing on a form prescribed by Commissioners Court.

3.3 These orders do not apply to:

           A. Decorative holiday lighting from November 15th through the next January 10th;
           B. Lighting required by law to be installed on surface vehicles and aircraft;
           C. Airport lighting required by law;
           D. Temporary emergency lighting;
           E.  Temporary lighting at construction projects; and
           F.  Federal, State, or local governmental facilities where compelling needs for safety and  security are demonstrated, and, in the determination of Commissioners Court, an exemption should be granted.

4. PENALTIES FOR VIOLATION

4.1 Violation of this order is a Class C misdemeanor, punishable by a fine of not over $200.
 
5. EFFECTIVE DATE

5.1 The effective date of this act shall be November 1, 2001
 

___________________ ___________
Val Clark Beard
Brewster County Judge
 

ATTEST

___________________ ______________
Berta Martinez
Brewster County Clerk
The real desert is a land which reveals its true character only to those who come with courage, tolerance and understanding. - Randall Henderson

http://www.bigbendchat.com/portal/forum/el-saloacuten/joe-a-memorial/

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Lemming_of_the_BDA

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A little closer to home...
« Reply #7 on: April 06, 2006, 11:47:46 AM »
Ft. Griffin, between Albany & Throckmorton, has a Ft. Worth astronomy club visit the park a couple of times a year. They have a presentation, and they set up their scopes and allow park visitors to peek at the heavens. They're a great group of people.
Ft. Griffin has fairly dark skies when you consider their proximity to Abiline and Wichita Falls.

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chisos_muse

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Natural Lightscape
« Reply #8 on: April 06, 2006, 12:09:38 PM »
Hey Joe! (where ya goin with that telescope in your hand?) :roll:


Nice to finally see ya! :D

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chisos_muse

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Natural Lightscape
« Reply #9 on: April 06, 2006, 12:11:30 PM »
Quote from: "randell"
When I'm in Big Bend, I would lay on my back  and stare at the sky all night.  It's more hypnotizing than staring at the campfire.

I'm with you, Randell......campfi res  are ok, but they make you smell like campfire too....
I like those lil candle lanterns, just enough soft light....

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Offline Joe

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Natural Lightscape
« Reply #10 on: April 06, 2006, 01:18:10 PM »
Quote from: "chisos_muse"
Hey Joe! (where ya goin with that telescope in your hand?) :roll:

Nice to finally see ya! :D


Thanks, Muse.  I'm not using Windows XP OS so I didn't have a way to resize my photos.  I thought I'd better start keeping up with the Jones', so I finally downloaded the photo resizing program that David and RichardM had provided links to.

And I always think of the Jimi Hendrix version of that song...
The real desert is a land which reveals its true character only to those who come with courage, tolerance and understanding. - Randall Henderson

http://www.bigbendchat.com/portal/forum/el-saloacuten/joe-a-memorial/

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chisos_muse

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Natural Lightscape
« Reply #11 on: April 06, 2006, 05:57:25 PM »
Quote from: "Joe"
Quote from: "chisos_muse"
Hey Joe! (where ya goin with that telescope in your hand?) :roll:

Nice to finally see ya! :D


Thanks, Muse.  I'm not using Windows XP OS so I didn't have a way to resize my photos.  I thought I'd better start keeping up with the Jones', so I finally downloaded the photo resizing program that David and RichardM had provided links to.

And I always think of the Jimi Hendrix version of that song...


You mean there's another version? I've never heard that one... I love Jimi 8)

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Offline Joe

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Hey Joe
« Reply #12 on: April 06, 2006, 06:25:27 PM »
Quote from: "chisos_muse"

You mean there's another version? I've never heard that one... I love Jimi 8)


Here's more than you ever wanted to know about "Hey Joe" -

http://www.tsimon.com/heyjoe.htm

Amazing how we start talking about jobs, then the night sky and now music history!
The real desert is a land which reveals its true character only to those who come with courage, tolerance and understanding. - Randall Henderson

http://www.bigbendchat.com/portal/forum/el-saloacuten/joe-a-memorial/

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chisos_muse

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Natural Lightscape
« Reply #13 on: April 06, 2006, 06:34:41 PM »
Very Interesting music stuff, Joe!
Yeah, tangents are easy to come by in this place,  :lol:

 


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