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the point of the launch telescope is not purely to expand the beam. Its to have it focused at x altitude, I forget what it is exactly but something like 10-15km. As for the pointing it at the sky, I have yet to find any restrictions on it federally or in my state. I would have to watch for...

Wow sounds like you know a lot about them. And yeah, when I learned more about the sodium ones, specifically how narrow they are and the need for them to be tunable, I realized it would be a pointless attempt. From everything I have looked at sodium are typically 20w and the rayleigh at the...

Uncertainty principal, airy disks, what different types of lenses do both by themselves and in combination. You could also do fluorescence, I have a pair of orange shorts and shoes that glow orange'ish/yellow when hit with a 532nm laser. (I really need to find out what type of dye nike uses for...

I do astrophotography and have a huge fascination with adaptive optics and laser guide stars. I have a basic tip/tilt adaptive optics module on my telescope. But what grinds my gears as well as million dollar observatories, is when there is not a bright enough star in the guide camera's fov to...

I'm looking for some cheap (sub $20) lasers for that wont die for absolutely no reason, but if one does its not a big deal. Are the 301 pointers on ebay any good? Wanting red, green and blue and would like at least the green to be very easily visible at night. Or is it just best to build my...

Yeah I would just be there for a few years likely and wont be too worried about them taking my hard earned money. The no sales tax is a real plus though especially if I time it when I get myself another telescope.

Yeah its never clear enough during the winter here. Spring time it will bounce between perfectly clear and raining. Then early summer is decent, mid-late summer its just smoke and fall is sometimes great sometimes terrible. Considering moving to central/southwest Oregon almost purely for...

Sorry for the late reply, I have been out of town. Camera is a SBIG STT-8300, scope is a celestron EdgeHD 9.25 and as you guessed its all on an iOptron CEM60.

I'm just north of you in Issaquah so we get fairly similar weather, and I would agree that its one of the worst places for astronomy. Thanks for the welcomes everyone.

I'll start off with sorry for this being my second post, I just discovered this section. I'm 22 y/o and been really into lasers on the internet for 8-10 years or so but never got around to getting myself any for some reason. I'm really into science/physics, my #1 life passion is astronomy...

Now that I am more adult-ish and actually have money to blow I am wanting to finally get into lasers after 8-10 years of looking at them. I am wondering where people go for parts for your basic everyday lasers. The only ones that I know of are ebay, DTR's Laser Shop and AixiZ. Are there any...