Light Blocking Panels

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KingNothing13
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Light Blocking Panels

Post by KingNothing13 » Tue Aug 13, 2019 5:49 pm

Does anyone on the forum use light blocking panels?

If so, do you have plans/photos you'd be willing to share?

I am thinking I would like to put something up when I am observing - I have a couple of new LED Street lights that are annoying. And neighbors. (which are and are not annoying :lol: )
-- Brett

Scopes: Apertura AD10||Orion GoScope II 70mm "Travel Scope"
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Re: Light Blocking Panels

Post by JayTee » Tue Aug 13, 2019 9:25 pm

Hi Brett,

There's not been a lot of traffic that I've seen on this topic. But to me it seems to be as simple as PVC pipes from Home Depot and tarps from harbor freight and you should be able to erect something fairly quickly. Don't forget to cut u-shaped slits in the tarp to allow wind to pass through but no light.

Cheers,
JT
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Re: Light Blocking Panels

Post by yobbo89 » Tue Aug 13, 2019 9:38 pm

yeah i do!, i use cardboard on my windows so can sleep during the day and astronomy at night! :lol:
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Re: Light Blocking Panels

Post by KingNothing13 » Tue Aug 13, 2019 10:33 pm

JayTee wrote:
Tue Aug 13, 2019 9:25 pm
Hi Brett,

There's not been a lot of traffic that I've seen on this topic. But to me it seems to be as simple as PVC pipes from Home Depot and tarps from harbor freight and you should be able to erect something fairly quickly. Don't forget to cut u-shaped slits in the tarp to allow wind to pass through but no light.

Cheers,
JT
Yeah, I've seen a few of those floating around from people who have built them.

I am thinking that this is a long term thing for me - going to go with a towel for now. :lol:
-- Brett

Scopes: Apertura AD10||Orion GoScope II 70mm "Travel Scope"
Eyepieces: GSO 30mm (42x), ES 82* 18mm (69x), 11mm (114x||36x), & 6.7mm (187x||60x)||Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
List Counts: Messier: 64; Herschel 400: 18; Caldwell: 2

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Re: Light Blocking Panels

Post by pakarinen » Fri Aug 16, 2019 2:44 pm

I do. I constructed a rectangular frame of 3/4-in PVC pipe and I hang black grommet-top cloth shower curtains from the top crossbar with cable ties. I didn't glue any of the PVC together, so it's quite easy and fast to put up / take down and very light weight and portable. And I can use the PVC for other projects if needed.

Since I usually observe on my deck, I'm probably going to just hang the curtain / bars on deck rail plant hangers. Even faster to put up / take down.

I'll see if I can post some pics.
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Re: Light Blocking Panels

Post by KingNothing13 » Fri Aug 16, 2019 2:46 pm

pakarinen wrote:
Fri Aug 16, 2019 2:44 pm
I do. I constructed a rectangular frame of 3/4-in PVC pipe and I hang black grommet-top cloth shower curtains from the top crossbar with cable ties. I didn't glue any of the PVC together, so it's quite easy and fast to put up / take down and very light weight and portable. And I can use the PVC for other projects if needed.

Since I usually observe on my deck, I'm probably going to just hang the curtain / bars on deck rail plant hangers. Even faster to put up / take down.

I'll see if I can post some pics.
Sure - I'd be interested in seeing pics, if you are able to post them.

Thanks!
-- Brett

Scopes: Apertura AD10||Orion GoScope II 70mm "Travel Scope"
Eyepieces: GSO 30mm (42x), ES 82* 18mm (69x), 11mm (114x||36x), & 6.7mm (187x||60x)||Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
List Counts: Messier: 64; Herschel 400: 18; Caldwell: 2

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Re: Light Blocking Panels

Post by OBXgirl » Fri Aug 16, 2019 3:03 pm

Our Club is looking into different configurations. Since we are at a State Park it will have to be something that can be broken down at the end of the night, but it also has to be fairly long. The main turn around for the island is right next to where we set up. So every car hits us with high beams as they circle around. The Park is working with us to try and come up with a semi-permanent solution. Nova-1 has more info on this....hopefully he will see this post and give you more information.
I have loved the stars too fondly to be fearful of the night. Sarah Williams


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Re: Light Blocking Panels

Post by Nova 1 » Fri Aug 16, 2019 4:12 pm

I believe Sky & Telescope had a DIY article on this subject last year. You might still be able to find the article online. If I can find my issue, I will post it. They used PVC pipe and a specific light blocking fabric. Easy to put up and takedown. I am looking for a spring-loaded roller that will hold a 6' wide fabric to pull across a few support post. I have not been very diligent in my search.

David
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Re: Light Blocking Panels

Post by KingNothing13 » Fri Aug 16, 2019 5:43 pm

Nova 1 wrote:
Fri Aug 16, 2019 4:12 pm
I believe Sky & Telescope had a DIY article on this subject last year. You might still be able to find the article online. If I can find my issue, I will post it. They used PVC pipe and a specific light blocking fabric. Easy to put up and takedown. I am looking for a spring-loaded roller that will hold a 6' wide fabric to pull across a few support post. I have not been very diligent in my search.

David
I am not finding the S&T article on the web - I've tried searches with variants on the terms, but nothing has come up.

This is also more of a long-term thing for me, if it happens at all. I think I am going to go with the old stand by towel over the head at the EP for now.
-- Brett

Scopes: Apertura AD10||Orion GoScope II 70mm "Travel Scope"
Eyepieces: GSO 30mm (42x), ES 82* 18mm (69x), 11mm (114x||36x), & 6.7mm (187x||60x)||Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
List Counts: Messier: 64; Herschel 400: 18; Caldwell: 2

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Re: Light Blocking Panels

Post by JimMinCT » Fri Aug 16, 2019 10:34 pm

What you're looking for, is a used projection screen mechanism.. Search Fleabay and you might get lucky...
Spray paint the screen black and you'd be in business...

Yup...

https://www.ebay.com/sch/i.html?_from=R ... n&_sacat=0
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Re: Light Blocking Panels

Post by mcolbert » Fri Aug 16, 2019 11:39 pm

and yet with all of the screen ideas, what is the stability like when the weather changes and it is windy? Time to pack up for the night I suppose.
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Re: Light Blocking Panels

Post by JimMinCT » Sat Aug 17, 2019 12:45 pm

mcolbert wrote:
Fri Aug 16, 2019 11:39 pm
and yet with all of the screen ideas, what is the stability like when the weather changes and it is windy? Time to pack up for the night I suppose.
As JT mentioned above... Some judicious u shaped slices can allow wind to pass without destroying the screen...
If it's gusting enough to knock the screen about, it's probably too gusty to observe anyway.
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