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Subject:
From:
Ron Canazzi <[log in to unmask]>
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Date:
Fri, 17 Apr 2015 17:20:13 -0400
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Ah it's all a lot of bunk!

don't you know that the stars are just little lamps hung by the party 
about 200 miles up from the earth and wiggled around to give us pretty 
illusions?  I'm O'brian of the inner party said that!
hahehahehahehahehahehahehahe!!!


On 4/17/2015 1:51 PM, Phil Scovell wrote:
> Martin,
>
> Thanks for those details.  Makes sense now that you put it that way.  Thanks
> for sharing those details.
>
> Phil.
> K0NX
>
>
>
>
> ----- Original Message -----
> From: "Martin G. McCormick" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, April 17, 2015 11:18 AM
> Subject: Re: The Colors of the Stars
>
>
>> There actually are different colored stars but their
>> colors come from their temperatures so they usually emit a broad
>> range of colors just like our own Sun but the hotter stars have
>> a peak that is higher or shorter wave-length than are the cooler
>> stars. A star like our Sun is considered to be an average
>> run-of-the-mill star. It is in the middle of it's life cycle so
>> it has about as long to shine as it has already shown. It's
>> surface temperature and the fact that we are not moving toward
>> or away from it at any real speed determines what color
>> Earthling see.
>>
>> When you heat something such as a piece of metal, it
>> starts to glow reddish-orange around 1,000 or 2,000 degrees.
>> Electric stove burners on high and tube filaments glow this
>> color.
>>
>> If you raise the temperature up to around 6 or
>> 7-thousand degrees, the light is more Sun-like. We would call it
>> yellowish-white. If you keep heating the metal, it shines more
>> blueish and eventually goes violet.
>>
>> Welding torches emit a lot of ultraviolet and are
>> hazardous to one's eyes because of this high temperature. If you
>> could keep heating things up high enough, the object you were
>> heating would be sending out X-rays and gamma rays.
>>
>> There are stars that are huge by our Sun's standard and
>> they actually shine in X-ray light because they run so hot.
>> Other stars run cooler than our Sun and might look more like a
>> glowing log in a dying camp fire.
>>
>> The smart people in astronomy say that our Sun will
>> probably die one day by expanding to something called a red
>> giant. It will basically cool off so that it's light is more
>> red-orange and it will most likely also expand in size to eat
>> our whole Solar System.
>>
>> Each hot object, whether or not it is a star or a light
>> bulb filament emits a whole rainbow of colors but some are much
>> stronger than others.
>>
>> What you saw with the binoculars is something called
>> refraction. Lenses cause this effect because different colors of
>> light are refracted at different angles so everything has a
>> halo of rainbow color around it.
>>
>> That is one of the reasons telescopes use parabolic
>> mirrors instead of lenses. Mirrors that are front-surfaced do
>> not refract light but reflect it and all the colors get to your
>> eye or your camera in the right place so a white star looks like
>> a white point of light rather than a very pretty but inaccurate
>> rainbow point.
>>
>> Martin
>>
>> Phil Scovell writes:
>>> I am buying the N4PY software for my Icom 7000, which works on Kenwoods,


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