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View Full Version here: : Hows the light polution at your place?


Starkler
17-06-2007, 01:42 PM
I have been having a play with google earth and the light polution map overlay as described here (http://www.iceinspace.com.au/index.php?id=63,404,0,0,1,0) to check out what it shows about the places I usually observe from.

Heres a few maps that will be of interest to some here.

1: My home is in the orange section, which doesn't surprise me. My usual spot away from home is well into the green heading towards blue. The sky is fairly dark but with LP to the north and west. Its darker than the Briars site (marker shown) which is run by MPAS but still dark enough to see most objects pretty well.

2: Snake Valley site is nicely dark. No complaints there.

3: Greater Melbourne area.

IMO If you can get out into the green zone or better, you are starting to get into useful skies for enjoyable dso viewing :)

Kal
17-06-2007, 02:36 PM
My house is in Sydneys red zone, not ideal. I agree that you can get decent skies from green zones - ASNSW's 'Crago observatory' which I have observed from before is in the green zone in Sydney's outer west and I thought the views from there pretty decent.

ballaratdragons
17-06-2007, 04:29 PM
Thanks for the maps Geoff :thumbsup:

Nice to have confirmation of my Snake Valley Dark Sky :)

Both Club site and Astro Camp site are under threat in the years to come though. Both are just on the border of the blue :sadeyes:

mill
17-06-2007, 04:39 PM
Thanks for the map and yheehaa i'm in the green zone.

sheeny
17-06-2007, 05:45 PM
Here's my situation. My place in the green area (but it's worse than that cause I have a street light over my backyard and one over my front yard and one over my neighbours front yard!:rolleyes:

So unless the moon is up and I'm planning just to observe/image that, I pack up and go to Blue Hill (near the bottom of the map). Much better there!:D

Al.

CoombellKid
17-06-2007, 05:58 PM
Well I'm comfortably in the grey zone a stones throw from the black zone : )

We have a light dome to the north so I guess that is why, however
it is mostly behind a tree line and out of view and never interferes
with observing. The village where we live is made up of about 6 houses
all of who retire to bed early with no annoying porch lights. Light polution
for me usually cames from the Moon and/or Venus as well as the Zodiacal
light spike which can be pretty annoying at times.

Couldn't handle living in a big city or urban area, it just wouldn't be the same.

regards,CS

Stephen65
17-06-2007, 10:39 PM
My house is so far into Melbourne's red zone its not funny. Just as well the Moon and Jupiter have been keeping me occupied lately.

Shaun
17-06-2007, 11:54 PM
I tried ti omport it but tells me unsupported files, i am in Coolgardie western australia anyone care to throw up a light pollution map please

Kal
18-06-2007, 12:03 AM
Here you go Shaun:

OneOfOne
18-06-2007, 08:10 AM
Looks like I am in "the Red", but then again so is my bank account!

My sister in law lives in South Frankston and I recall some nights coming out to go home and being just about able to see the Milky Way just standing near a street light.

Tamtarn
18-06-2007, 10:41 AM
Thanks for posting Geoff.

We're further out to the east than Seville. We must be just off the map somewhere near the edge of green and blue.

We've had many great nights observing DSO's :)

Can you tell us if we're near the blue zone Geoff ??

rhisaac
18-06-2007, 12:25 PM
Down here in Hobart, Tas is pretty good. Last night the viewing was incredible and I live in the suburbs. :)

ving
18-06-2007, 02:39 PM
hard to tell, but i think i am inthe green. :)
maybe bordering blue...

erick
18-06-2007, 02:55 PM
Wish I could say I'm feelin' black or blue, or maybe even green or yellow, but, sadly I'm orange and uncomfortably close to red! And I live in the so-called outer suburbs! :sadeyes:

ving
18-06-2007, 05:04 PM
someone put up a south west sydney map for me? (cant do this at work...)

crystal_stars
20-06-2007, 12:21 PM
I tried to do this. I saved the light pollution picture in both tiff and jpg and neither of them would load into google earth. For both of them it said unsupported file format.:shrug:

Anyone know how to fix or get round this?:help:

Thanks.

Kal
21-06-2007, 07:43 PM
David - you can see Sydney in the picture posted in the article. Basically it is red out to Liverpool, then it is orange all the way out to Camden. Beyond Camden you might get something decent in the green zone.

Crystal_stars, not sure what is going on there. My google earth accepts the following file formats for image overlay: .jpg .bmp .tif .tga .png .jpeg .gif .tiff

ving
22-06-2007, 01:12 PM
gee i dont know how you picked the from the pic andrew!

Kal
22-06-2007, 01:39 PM
I didn't pic it from the pic David, I cheated by zooming into the area (check your gmail, I sent you a high rez copy yesterday that was too large to post here) :lol:

ving
22-06-2007, 01:49 PM
cheat :P

on my way :)

ving
22-06-2007, 01:57 PM
about the same colour as menangle... funy how the strip of land where i am is lower resolution than the rest :(

oh well if i look south i can see green :P

Tamtarn
22-06-2007, 02:02 PM
Hi Andrew

Any chance of increasing the area shown in Geoff's map.
On the third map we are just past Seville, Launching Place is a little more to the East.

David

erick
22-06-2007, 02:54 PM
David, have I got it here? Eric

Tamtarn
22-06-2007, 04:24 PM
Sure have Eric, thats about where I thought we would be but was not sure.

Very pleased to be in the blue. :)

Thanks for your help :thumbsup:

Ingo
30-06-2007, 11:11 AM
I'm in an orange area. :(