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Re:Light Pollution Map by dmrotar on Friday April 23, 2021 @12:45PM (#26916579)
Resources like this (and as others have mentioned, Dark Site Finder) are very useful for astrophotography, especially for a hobbyist like myself. Many don't realize how relatively close they live to areas with great nighttime viewing conditions.

For example, upstate New York has some great viewing locations, so even if you live in NYC it's an easy weekend trip. Here's a shot I took of the Milky Way taken from such a site (one of the darker spots in the map): https://www.lumathon.com/photo/_qTYviEhy/Colors-of-the-Milky...

Edit: a few more of my other shots of the night sky for anyone interested, various locations, all of which were scouted using a light pollution map like the one posted -- https://www.lumathon.com/dan/photos/tag/stars

Re:Light Pollution Map by amoorthy on Friday April 23, 2021 @12:54PM (#26916677)
Wow amazing! I've been itching to show my kids the Milky Way. I myself have only seen it once in New Zealand decades ago. What is the minimum dark sky rating to be able to see it with the naked eye?

I live in the Bay Area and I know there is Pigeon Point Lighthouse which is a dark sky spot but I think it's often cloudy. If anyone has better suggestions would be grateful to hear those.

Re:Light Pollution Map by mceachen on Friday April 23, 2021 @03:01PM (#26917986)
I don't think these maps take into account mountains.

There are rest stops on 280 (just south of 92) that (at least used to) host telescope parties: https://maps.app.goo.gl/vWEkH1bSvaUZKZHS8. You can definitely see the Milky Way from there, but remember it'll take 30 minutes to acclimate your eyes: tell your kids to stay off their phones (!). You're behind the San Andreas range to block out a lot of the peninsula light pollution, and you've got the coastal range holding back the fog (at least most of the time). Less moon is (much) better, and use a satellite tracker to have something else to watch out for.

Re:Light Pollution Map by krneki on Friday April 23, 2021 @03:40PM (#26918363)
World Atlas 2015 model accounts for elevation. So locations with higher elevation are darker. But it doesn't account for obstacles like a mountain range shielding you from a city behind it.
Re:Light Pollution Map by shagie on Friday April 23, 2021 @01:17PM (#26916916)
I'd suggest taking a road trip and go out to Panamint Springs outside of Death Valley. I forget if it was Zabriskie Point or Father Crowley Vista Point when I was there... but I felt that I could see all the stars that night. There was a distant glow to the east that was Vegas and another glow to the south west that was LA.

This also has an advantage that it's dry and so you don't get clouds as much.

Though, specifically for the Milky Way: https://darksitefinder.com/how-to-see-the-milky-way/

Re:Light Pollution Map by tshaddox on Friday April 23, 2021 @05:23PM (#26919357)
We stayed 2 nights at the hotel there in Panamint Springs back in December, and even right outside the cabins (and nowhere near a new moon) the Milky Way was clearly visible after letting your eyes adjust for a few minutes. This was in the parking lot where there’s no real attempt at avoiding nearby light pollution.
Re:Light Pollution Map by dheera on Friday April 23, 2021 @01:00PM (#26916730)
Davenport is a slightly better bet weather-wise than Pigeon Point, as due to the shape of the coastline and prevailing winds the clouds usually get swept past it. But it still gets cloudy from time to time there. Route 1 in general is a toss-up.

If you live in South Bay, the hands-down best place IMO is Pinnacles National Park. It's only 1.5 hours from San Jose, and easily daytrippable.

If you don't want to go that far, try anywhere along the Airline Highway, in the Paicines or Tres Pinos area (just get away from streetlights; for example, Panoche Road is a very, very dark road), Coyote Lake (shoreline is open for stargazing 24 hours; pay with machine at entrance), Henry Coe State Park, or anywhere along Mines Road but at least 15km southeast of Livermore.

Also, if you're going for Milky Way viewing, do make sure you know when and where the Milky Way is visible. The bright part and galactic core are only visible very late at night now, after 11pm or so, in the east direction. In mid-Summer the MW will be in the sky all night. In autumn the MW will be in the southwestern skies early at night and not visible late at night.

At other times, such as in winter, the outer parts of the Milky Way are in the sky, but you need much, much darker skies to make anything of it, and it's hard to see without long exposure photography. The winter side of the galaxy is actually really beautiful if you do a long enough exposure and all the signal processing necessary to get rid of noise.

Re:Light Pollution Map by doubtfuluser on Friday April 23, 2021 @02:29PM (#26917640)
I once got nice shots from Mt Tam. You can hardly see it, but with an ok camera doing long exposure you can get some nice pictures - even being so close to SF
Re:Light Pollution Map by derwiki on Saturday April 24, 2021 @10:02AM (#26924887)
Yea the blanket of fog over SF can actually help trap light and make the sky more visible. Watched a meteor shower from Tam once.
Re:Light Pollution Map by sciurus on Friday April 23, 2021 @02:27PM (#26917620)
Based on https://astrobackyard.com/the-bortle-scale/ I'm guessing 3 or 2 to see it well.
Re:Light Pollution Map by snitzr on Friday April 23, 2021 @05:50PM (#26919632)
When I was at the Grand Canyon, I saw the milky way right after the sun set and before the sky was fully dark.

I've also seen the milky way in West Virginia.

Re:Light Pollution Map by s0rce on Saturday April 24, 2021 @12:46AM (#26922313)
Bit of a trek but the panoche and tumey hills and other spots along the Western edge of the Central valley are dark and remote.
Re:Light Pollution Map by JoeAltmaier on Friday April 23, 2021 @03:20PM (#26918170)
Lick Observatory
Re:Light Pollution Map by packetslave on Friday April 23, 2021 @07:34PM (#26920526)
Not open to non-professionals after dark except for a handful of "Photo Nights" each summer. If you drive up there after dark, you'll get yelled at (at a minimum) or they'll call the cops on you for trespassing.
Re:Light Pollution Map by JoeAltmaier on Monday April 26, 2021 @07:42PM (#26949753)
Mount Hamilton Road is available all year. Once you get above the cloud cover, the Milky Way is visible without an Observatory!
Re:Light Pollution Map by packetslave on Tuesday April 27, 2021 @12:27AM (#26952005)
True enough, but headlights driving up the mountain cause light pollution for the astronomers working at the observatory (who necessarily need to work at night).

From https://www.ucolick.org/main/visit/info.html

"Please do not visit the observatory at night without a ticket to one of our evening programs.

Lick Observatory is an active research facility, and at night all of the buildings are locked and astronomers are working at the darkened telescopes. Telescopes require the darkest possible conditions to detect the faint light from celestial objects. The success of our work relies upon minimizing lights around the observatory at night. Thank you."

Re:Light Pollution Map by 2bitencryption on Saturday April 24, 2021 @03:27AM (#26923001)
Whoa, that site (lumathon) looks like exactly the sort of "Flickr alternative" I've been looking for.

It's so performant, and the zooming-as-you-scroll part is really elegant.

If that's your site, which it seems to be - great job!

Re:Light Pollution Map by dmrotar on Saturday April 24, 2021 @08:28AM (#26924404)
Yeah it's indeed my service that I'm in the process of getting off the ground. Thank you sincerely for the compliment -- the UI is definitely something into which a lot of hours went so I'm happy that it's having a positive impact on the experience. (I too wasn't satisfied with some aspects of Flickr and the other big photo hosts which is why I started work on it.)

Do you do any astrophotography?

Re:Light Pollution Map by 2bitencryption on Saturday April 24, 2021 @04:11PM (#26927919)
Awesome work.

I don't do astrophotography, my interests are more terrestrial, namely street photography :D

There are lots of street photographers I follow, such as Shin Noguchi [0]. But I absolutely hate how Instagram is the go-to platform for photographers nowadays. I can't imagine a worse viewing experience for street photography, which tends to be ~35mm and landscape, than my phone's narrow, vertical screen. It's awful. But it's the most popular platform today, so there's really no getting around it.

[0] https://shinnoguchiphotography.com/photo/something_here/

Re:Light Pollution Map by dheera on Friday April 23, 2021 @12:46PM (#26916592)
I do a lot of deep sky landscape photography (https://instagram.com/dheeranet/) and dark skies are essential to that. Most of these are taken from pretty dark spots on the map in California.

Especially essential is planning for dark skies in the direction of whatever it is you are trying to shoot, which is in some cases arguably slightly more important than the dark sky level of where you are standing. If a galaxy rises over a city, it's going to be hard to image even if you're far from the city.

One of the tools I use the most is an app called "PlanIt Pro", which gives you pretty much all the info you need, including being able to show where in the sky various astronomical objects are, their magnitude, a VR simulation of them with the 3D topo map, and lots of other things. It also has a light pollution map built-in, and can show you the position of the Milky Way. I plan many of my shots with it. There's a free version and I can't remember which features are omitted from that but it's been worth every penny for me.

Re:Light Pollution Map by lifeisstillgood on Friday April 23, 2021 @12:58PM (#26916713)
I thought that the Northern Hemisphere was basically pointing away from the Galactic Centre, so shots like this were basically only from South America or Australia etc.

Its - brilliant. Well done and thank you

But .. oh man .. the whole of the UK is polluted :-( maybe a few bits of one Scottish Loch are free.

Re:Light Pollution Map by davidcuddeback on Friday April 23, 2021 @03:22PM (#26918201)
> I thought that the Northern Hemisphere was basically pointing away from the Galactic Centre, so shots like this were basically only from South America or Australia etc.

From 40N latitude one can see the sky as far south as -50deg declination (50 degrees south of the celestial equator). It's true that the galactic center is in the southern sky, but it's still visible from the northern hemisphere. If you can see Sagittarius (the teapot), you're looking in the direction of the galactic center.

The GP's shot is representative of what one can expect from about 40N. From the southern hemisphere, I've seen shots of the milky way that span from horizon to horizon, so I do think they have the better vantage point.

Re:Light Pollution Map by closeparen on Saturday April 24, 2021 @01:04AM (#26922382)
Public places like parks are generally closed at night, aren’t they? Are there special sites that welcome nighttime visitors? Do you get camping permits? Or just hope the police don’t notice?
Re:Light Pollution Map by andreareina on Saturday April 24, 2021 @01:23AM (#26922474)
Gorgeous. You probably know this already, but you can avoid the star trails by making several shorter exposures and stacking them.
Re:Light Pollution Map by Biologist123 on Saturday April 24, 2021 @10:07PM (#26929779)
These are such great photos. Thanks for sharing.
Re:Light Pollution Map by cpach on Friday April 23, 2021 @12:46PM (#26916590)
Great shot!
Re:Light Pollution Map by agogdog on Friday April 23, 2021 @12:53PM (#26916663)
Many (like myself) also don't realize how far away they live from areas with great nighttime viewing conditions (a 3-4 hour drive for me).

:(