Help To Map Light Pollution
jcgam69 writes "October 1 marked the first day of the Great Worldwide Star Count, a half-month citizen science project that will harness thousands of observers across the globe to help map light pollution."
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http://nssdc.gsfc.nasa.gov/planetary/image/earth_night.jpg
Done.
Table-ized A.I.
Wouldn't it be just as easy to record a spin of the earth from the dark side?
Am i missing exactly why the stars light pollution keeps us from seeing would be a more useful measure than simply the brightness of light emitted?
Ice Cream has no bones.
But can't we just view how much light there is in space from satellite photos and guess what the light pollution would be (like in http://upload.wikimedia.org/wikipedia/commons/archive/8/86/20040921144929!Usa_night.gif)?
A few 1000 observers will offer very little resolution, considering the fact that light pollution is very localized. I live in the middle of an urban area, but can drive a few miles to see 10x as many stars.
Right there. No, not there - THERE. Can't you SEE it ? Oh well. Have some heavy pollution too in stock. Interested?
The sample size will be way too small. And how are you going to map rural areas where no one lives? And how do you know that everyone is counting every star (and just once!)? A good idea in theory, and if the project's aim is simply to get the general public aware of how bad pollution is... I guess it's a plausible concept. But it's in no way accurate. I mean, what if it's cloudy? This seems like just another thing to do so people can say "harnessing the power of (insert any word for great number of people here) to (insert undoubtedly noble concept/idea here)." I mean, really, there's astronomers who do this, right?
Tm
;)
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As an amateur astronomer I always support these efforts, not so much because they truly add a lot of value as the potential PR they generate. I live in an extremely urban area and can only see planets and the very brightest stars. And the problem is that we tend to generate a lot of light pollution that is a waste. We don't just illuminate the areas that needs it, but throw off a lot of light pollution because our lights are not focused on the needed area. It's like the standard light in your house, you turn it on and it throws light everywhere even though you just needed it to read a book, it's a waste. I'm not a green fanatic, but it just makes economic sense to try and reduce and eliminate waste where it exists .... plus I really miss seeing the Milky Way.
How timely! I am planning to take a trip into Arizona or Colorado this winter *just* to see the unadultered night sky. I'm not entirely sure where to begin -- just drive randomly until i'm in complete darkness? Word of mouth? Any suggestions on how I can finally see the stars for once in my life?!
I live real close to Chicago. On a clear night I can see Venus (if it's not too cloudy here in the midwest). I do most of my skywatching here.
No folly is more costly than the folly of intolerant idealism. - Winston Churchill
Definitely lots of stars here! And still NINE planets! :-)
The original title (from Firehose) is "Thousands Help To Map Light Pollution". Somehow the editors have managed to make the headline worse by dropping the first word. Good job!
"A week in the lab saves an hour in the library"
I sleep at night. All night. Can I do this during the day sometime?
.. paranoid crackpot leftover from the days of Amiga.
Now that would make sense. Trade Credits from Blind people and religious fanatics for use by stadiums during night games and hefty fines for Las Vegas (baby!)
Hmm Vegas alone could pay for NASA's budget every year. I'm liking it.
Sorry about the writing. Robot fingers, you know? Cliff Steele in DOOM PATROL #23
The whole idea that man made lights are causing light pollution is just a hoax foisted onto you by the libural media.
Laugh. It was funny.
It's either that or armed guards, and electric is cheaper.
HexaByte - he's a square and a half!
have you considered motion sensors? or IR sensors.. or radiowave sensors.. You'll have the best of all worlds...
- light when you need it (i.e. somebody is in the vicinity. Heck, the light suddenly popping on has more effect than the light being on continuously)
- no light when you don't need it (makes the light-pollution people happy)
- lower electricity bill
down sides..
- initial cost (couple bucks)
- initial installation (screwdriver and some healty common sense when it comes to dealing with electrical wiring)
OK. I live in Columbus, Ohio--a metropolis. I can't see shit except the moon and about five stars.
Do I win something? What's my motivation for pointing this out?
Also, does anybody want to buy a Celestron Nextar SLT 130 telescope? I've seen as much of the moon as I care to view.
A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
I did this exercise repeatedly in Beijing, China, a couple of weeks ago. When the atmospheric pollution was bad, I could only see two stars - though I suppose they may have been planets. This increased radically to three on a windy day where some of the smoke blew away.
Any sufficiently advanced technology is indistinguishable from a rigged demo
--Andy Finkel (J. Klass?)
Sooty air will block that nasty light pollution. Any light pollution more than just a couple miles from the observatory will be rendered harmless!
This kind of pollution cannot be tolerated. Think of the health of our grandchildren. Damned SUV-drivin' polluters!
/removes tongue from cheek
The original title (from Firehose) is "Thousands Help To Map Light Pollution". Somehow the editors have managed to make the headline worse by dropping the first word. Good job!
The original title makes it sound like the task is pretty much done by the time you've read it; much like "Thousands Rally in DC."
The new title seems more like a plea for us to chip in on the project. I think it's an improvement.
If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
Pollution...?
Personally, I stopped using map-lights years ago - is there a way I can claim retro-carbon credits for that...?
But they all blink...
Maybe it has something to do with the Navy base to the South, or the other Navy base to the East, or the Air National Guard base to the East, or the regional airport to the North...
Start at Kayenta Arizona, which is the largest town in the Navajo Nation, and functions as a regional capitol, of sort.
Bring a good car, several maps, one map which shows BLM Land. camping supplies, plenty of gas, food and water. You'll be in the middle of nowhere, so always make sure you have enough gas.
Head North on Highway 261, go through Monument Valley, head towards Natural Bridges National Monument. Monument Valley is one of the most famous places in the world, yet you can stand on the side of the road without seeing anyone for 30 minutes.
Drive 4000-feet up the side of a cliff on a crazy curvy old Uranium Road. This area is called the 'Gooseneck State Park. When you get to the top, stop and look back south over the valley--- you can see quite far.
Head north until you leave Gooseneck. This is BLM land. You can drive on any road, find a nice spot and camp. Wait until the nighttime, and check out the stars.
This is one of the most remote places in the US-- millions of stars. I remember it being so dark, and the stars were so bright that I could see faint shadows from the starlight.
"Can of worms? The can is open... the worms are everywhere."
http://www.newyorker.com/reporting/2007/08/20/070820fa_fact_owen?printable=true/
Parent obviously did not bother to read the article.
Go after heavy pollution instead.
-- Make America hate again!
From http://www.darksky.org/about/ :
Goals
1. Stop the adverse effects of light pollution on dark skies, including
* Energy waste and the air and water pollution caused by energy waste
* Harm to human health
* Harm to nocturnal wildlife and ecosystems
* Reduced safety and security
* Reduced visibility at night
* Poor nighttime ambience
2. Raise awareness about light pollution, its adverse effects, and its solutions
3. Educate everyone, everywhere, about the values of quality outdoor lighting
4. Help stop other threats to our view of the universe, such as radio frequency interference (RFI) and space debris.
There are a bunch of very interesting articles on how less exterior lighting gives better visibility, roughly speaking because floodlights don't really light up everything and end up blinding you more than general darkness with point illumination.
"Good news, everyone!"
I'm surprised not to see any mention of the International Dark-Sky Association; this is what they are all about.
Lights used to read maps by? Like these http//www.alibaba.com/showroom/Map_Light.html, or maybe these, http//www.tirerack.com/accessories/hella/map_light.jsp perhaps?
Do you feel more enlightened now?
Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
But isn't this just a really hard way of mapping street lights?
Deleted
... and I'm not trying to troll or anything, but is there anything humans do that isn't considered some form of pollution? It seems that all of our advancements have come at the price of some form of pollution. With the number of people on Earth is it even possible for us not to pollute or pollute very little to the point where it has no significant impact on the environment?
Now I'm fairly ignorant on the subject I'll admit and please, please feel free to correct me, but if everything we do somehow injures the environment then wouldn't that insinuate that we're some form of blight on this planet? It just seems sort of unfair that no matter what we do we'll always be the "bad neighbor" in the ecosystem. I suppose it all comes down to how much of the environment we're willing to sacrifice to advance our species technologically.
I'd appreciate opinions on the matter or any corrections to my statements you may have.
I've been using Clear Sky Clocks for years. Find a clock near you and then click on "Light pollution map." From there, click on link road map and you can find where good and bad skies are. Have fun.
See, North Korea has no problem with light pollution during the night... http://www.globalsecurity.org/wmd/world/dprk/images/dprk-dmsp-dark-old.jpg
Take Nobody's Word For It.
downtown chicago...1,2....done. Proud owner of a Orion 8' reflector on a Atlas goto mount that has been used all of three times. /cry
"At first, we thought it was just another snake cult."
... and I'm not trying to troll or anything, but is there anything humans do that isn't considered some form of pollution?While that's a true statement, there is no reason to avoid making an attempt to reduce our impact on the planet while we're here.
I believe we're already screwed, as unless at least 75% of us (some would say this should be much higher) just disappear tomorrow we're basically going to burn up all the resources before we figure out how to co-exist with them. We have a chance, ozone will stop depleting in the next ~20 years and start making a comeback; it all depends on whether or not we've triggered the next ice age by the time it can recover. I think it's a decent shot but will only hold up until the next limitation we run up against.
The fact remains that we are so far beyond the Earth's capacity that without a large catastrophe or huge reversals in birth rates our long-term chances of surviving are nil. Something we'll end up taking from the planet will snowball with an effect that makes it uninhabitable. I see cleaning light pollution as one of the things which can make our time here more enjoyable (you know, like breathing clean air as well.)
While it's all well and good to try and practice conservation, even if all 6 billion of us recycled to our heart's content there wouldn't be a long-term difference seen. To survive this population requires a global paradigm shift which is about as likely as Angelina Jolie showing up at my desk to compliment my creative programming skills.
I love the Big Island. Use orange street lamps to minimize the damage done from light pollution. Very forward thinking. But then, if a large part of their economy comes from the observatories, why not!
Buy the way, ask Thor. He probably had to count them already. He counted the pebbles in Wales.
We've been infiltrated by Muslim jihadists!
Please stop stalking me, bro.
I don't know why your genuine question got modded Troll, but whatever. That'll teach you to ask questions.
But really. I grew up at the tip of the Baja peninsula, and I now live in St Petersburg, FL. Darkness is good for your brain, man. It's difficult to describe the pain of not being able to be outside in the dark and see the stars. It's very abstract, and unless you've been out away from cities for a significant period of time--I think a month, at least--it's difficult to appreciate.
Same goes for noise pollution. And pollution pollution. When I came to the US, I spent a couple weeks in Riverside, CA. I went into Vernon, an industrial district of LA, with my friend Jon for one day. As we entered the city, I could feel the air entering my lungs, it was so thick. After 8 hours in Vernon, we left, went to dinner, and got to the place we were crashing. Some of the people in the group went out, but I didn't feel well, so I laid down. That night, I slipped into a hallucinatory high fever. Way way way better than TV. Anyway, the fever lasted a week in a half, and the rattling cough lasted 3 months.
Now, light pollution is less serious than that, but I'm sure it accounts for at least part of my depression living in St Pete. Which is why I'm moving.
Please stop stalking me, bro.
Blow up the sun, that should cut light pollution by at least 50%
sigs... don't talk to me about sigs....
It's not just that simple, but I think light pollution could be better calculated using that and some algorithms. One thing to take into account is elevation, at higher elevations the same amount of light visible from space wouldn't equal the light pollution. With less atmosphere to go through, more light will pass into space so the satellite will record a higher value than the same lights at a lower elevation, while less will actually be reflected back to the ground by the atmosphere so there will be less light pollution. Also let's say you are looking at a normal street lamp. Without a special hood, a lot of the light goes up into the atmosphere at various angles, but not straight up. If the satellite was directly overhead, it would not count all the light pollution produced by these lights.
Those of us in places like Seattle might not see any stars at all from Oct 1 - 15, and it's not because of light pollution.
this is a big problem... human observation -live- and real time makes a huge difference. the human mind is able to use its intuition in scanning the skies, and in effect becomes part of the sky (measuring a system changes the system).
this is why humans can pick out standard candles with relative ease.
I'm in a moderately populated urban area. There's a lot of dark patches, but I can make out some areas where I can see localized lights. Not enough to be stars, they seem to be... hmmm... they look something like slightly organized dots. However I also do see some sort of borders between what I assume are the stars. It's like a sort of grid of white lines, about 2 feet square, with the stars in between.
Wait, maybe I'll get better results outside the office, and at night.
Never mind.
This has got to be one of the most +1 Informative posts I've read that is at the same time Offtopic. It is one of the most informative posts even if it was on topic. Wow. great Job.
i.e. if a passerby's pupils have shrunk to the size of pinholes because of a glaring light, their ability to see their feet, let alone a criminal, will have disappeared for several minutes. The same if they're driving by: they're less likely to see criminals by a house or moving creatures (deer, dogs, running children) by the road. [And then there's how the deer will also be blinded (more than humans for a given glare bomb).]
I live 2 towns away from McDonald Observatory in Texas, and in this town and most of the neighboring towns, the city lights have guards on them to reduce the amount of light going upwards into the atmosphere and reflecting down and interfering with the telescope. it is amazing the difference it makes. in a city about 100 miles from here, you can't see a single star at night, here, you walk out and look up at night, you are sure to see stars. a lot of simple things can be done to reduce light pollution.
I've decided to Diversify my Holdings. I've divided my cash between my left and right pockets, instead of all in one.
Carbon by VNV Nation (c) Totally stolen from some website a million points of light ascending to the sky monuments in darkness standing watch until the sun will rise screaming to an emptiness of how we deified ourselves with our hands over our eyes claiming all of creation what inspires in us this madness that out existence should be defined by a light that can't be seen by anyone what inspires in us this madness that out existence should be defined by a light that we can't see by a light that can't be seen a million points of light ascending to the sky monuments in darkness standing watch until the sun will rise I can't, I can't see this all as progress how did we come this far? when we see ourselves as deities claim nature for ourselves by our actions we betray the instincts in our race by our blindness and stupidity we kill everything we kill everything can someone see our self destruction? are we reminding ourselves that our existence is so delicate that without this light we are no more that without this light we've made we are no more a million points of light ascending to the sky monuments in darkness standing watch until the sun will rise we torch the earth until it bleeds rain ashes from the sky just to make a light that no one can see we cut the earth until it bleeds rain ashes from the sky just to make a light that no one can see just to make a light just to make a light we kill everything by our blindness and stupidity we kill everything and in a thousand years what will be our legacy a million lights that no one can see? a million points of light
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