Click here if you are having trouble logging into the forums
Privacy Policy |
Please read our Terms
of Service | Signup and
Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
Bill F
super member
Reged: 05/30/05
Posts: 157
Loc: scotland
|
|
Hello,
The local council are in the process of changing from the old sodium lights to the new low energy white lights. These will be better in that they shed far less light upwards and sideways. An important point, as 5 of them shine into my back garden, where I observe. As they are white lights, they are obviously emmitting right across the visible spectrum. Will this have any effect on UHC filters?
Bill
--------------------
Orion Optics (UK) SPX 250 F4.8
|
richard7
sage
Reged: 11/02/07
Posts: 425
Loc: Sacramento
|
|
A few years ago I remember officials om Mt Palomar Obs. heaping praise on one of their local cities for switching their streetlights from white to Sodium vapor claiming it significantly reduced lp.
White light doesn't sound like an improvement to me.
Richard Trost
--------------------
Richard Trost
Orion 130st, Ioptron e/r80
Meade 10x50, Konusvue 20x80, Zhumell Tachiyon 25x100
Coffee thermos and cup
|
Bill F
super member
Reged: 05/30/05
Posts: 157
Loc: scotland
|
|
I was thinking the same.
Bill
--------------------
Orion Optics (UK) SPX 250 F4.8
|
George N
sage
Reged: 05/19/06
Posts: 296
Loc: Binghamton & Indian Lake NY
|
|
Quote:
A few years ago I remember officials om Mt Palomar Obs. heaping praise on one of their local cities for switching their streetlights from white to Sodium vapor claiming it significantly reduced lp.
White light doesn't sound like an improvement to me.
Richard Trost
What works for many pros using large telescopes may not work for amateurs or even those pros who want to observe in the very wave lengths that the LPS puts out. In Bill’s case, “less light” is good, but “white light” may be bad. I’d be happy with “less light” no matter what the color of the replacement.
--------------------
George N
Obsession 20
Optical Guidance Systems 10" F/9 R-C Cass
6" F/5 & 8" F/8 home-made Newts
MI-250 mount
SBIG STL-1301E CCD
Member, International Dark-Sky Association
|
panhard
Carpal Tunnel
Reged: 01/20/08
Posts: 2528
Loc: Markham Ont.
|
|
If the new lights are of the proper design they will be a big improvement. The lights in the complex where I live have been just replaced. The new lights are light emitting diodes that are shielded so the light goes straight down. There is no light shining up at all. It all points toward mother earth not the heavens above. You will be happy if they use fixtures similar to ours.
--------------------
Orion xt10i
8 & 17mm Hyperion eye pieces
koning 32mm 25mm skywatcher eyepieces
lumicon 0111 & antares variable polarizing filters
12x50 binos
A love for this hobby
"What goes around comes around."
"She who must be obeyed."
Herb c
cloudy nights my # 1 site
43.53°n 79.17°w
|
|
0 registered and 1 anonymous users are browsing this forum.
Moderator: Tom L, csa/montana
Print Thread
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Thread views: 338
|
|
|
|
|
|
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
[Re: 