Global light pollution map

[dpastern]

whilst not zoomable etc, gives us a good idea of how bad light pollution is on a global scale:

http://www.inquinamentoluminoso.it/download/mondo_ridotto0p25.gif

Dave

[RB]

Try this Dave, in our Projects and Articles there's a "how-to" on overlaying the LP image onto Google Earth.

http://www.iceinspace.com.au/63-404-0-0-1-0.html

I find it very helpful.

:)

[dpastern]

That's pretty damn cool Andrew - thanks! I don't have Google Earth installed, but looks like I might just do so.

Dave

[Robh]

There is also this composite image of the Earth at Night ...
http://apod.nasa.gov/apod/ap001127.html

Regards, Rob

[dpastern]

Isn't that LP ugly. Amazing, I'd say 99% of our light pollution is from streetlights and lights left on in business premises. Neither needs to be left on imho.

Dave

[Kevnool]

Looks like i left my floodlight on again. LOL
Cheers Kev.

[figgylion]

Is astronomy in Japan even possible ?

[DavidU]

Japan looks like a disaster!
I installed Google Earth on the laptop and it crashes the whole system.
It says it is not compatable with my video card:question:

[glenc]

Post 6 here has light pollution maps of Australia.
http://www.iceinspace.com.au/forum/showthread.php?t=49777

[G1ZmO]

Here in central Scotland it's horrible. Sodium streetlights everywhere. I have 5 which shine on my garden giving me a LM of around 3.5 :(
Need to drive for at least an hour to get to 5.5 skies

REALLY looking forward to bringing my scope to Aus :)

Paul

[Dennis79]

I think this map is questionable. The nature of the surrounding land seems to have no impact on the reach of a towns light pollution. I also find it suspicious that the light pollution of a remote town would be in perfect circles.

I disagree with the maps depiction of my home area, that's based on my own personal viewing experiences.

I beleive this is a mathematical model only, best used as a very rough guide.

[dpastern]

Keith - others in this thread have made suggestions for other ways of seeing LP etc.

Dave

[MrB]

Keith, have you downloaded the full sized version?
View the 280MB tiff file at 100%, you'll see most of them are not "perfect circles"

[dpastern]

I didn't even realise there was a full version to download Simon. Keith, check the parent site out:

http://www.lightpollution.it/dmsp/index.html

plenty of info there.

Dave

[MrB]

Yep, thats the site.
The 280MB tiff is just for the Oceania (http://www.lightpollution.it/worldatlas/pages/fig9.htm) region... thankfully it has been compressed to a 1.2meg zip file for download.
Why they couldn't have made it a GIF instead of TIFF file I don't know :shrug:

[koputai]

In some parts, of course, look at some of the very successful Japanese amateur comet and asteroid hunters.
I used to live in Tokyo, and I must admit I saw nothing fainter than Jupiter for the year I was there!

Cheers,
Jason.