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  #1  
Old February 1st 04, 04:19 AM
Holly
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Posts: n/a
Default 2 cold

Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.
Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly
  #2  
Old February 1st 04, 05:00 AM
Starlord
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Posts: n/a
Default

There is 2 ways to use a telescope to look at the sun.

1. Mount a sheet of white cardstock above the eyepiece and PROJECT the suns
image on the cardstock. I do this with my 8inch Dob and it's the safest way to
do it.

2. But a full apature solar filter that goes over the front end of the
telescope.


--
"In this universe the night was falling,the shadows were lengthening
towards an east that would not know another dawn.
But elsewhere the stars were still young and the light of morning
lingered: and along the path he once had followed, man would one day go
again."

Arthur C. Clarke, The City & The Stars

SIAR
www.starlords.org
Freelance Writers Shop
http://www.freelancewrittersshop.netfirms.com
Telescope Buyers FAQ
http://home.inreach.com/starlord
Ad World
http://adworld.netfirms.com

"Holly" wrote in message
...
Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.
Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly



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  #3  
Old February 1st 04, 06:04 AM
CLT
external usenet poster
 
Posts: n/a
Default

"Holly" wrote in message
...
Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.


I've been on semi-vacation this week and it has been cloudy every night but
last night. It was also too cold to go out, even though the moon was in a
phase I wanted to look at.

If you want to look at the sun, you can project, however that can be hard on
the telescope. Get some solar film (Baader) and you can make a nice solar
filter

Clear Skies

Chuck Taylor
Do you observe the moon?
Try the Lunar Observing Group
http://groups.yahoo.com/group/lunar-observing/

************************************

Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly



  #5  
Old February 1st 04, 04:23 PM
Roger Hamlett
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Posts: n/a
Default


"Glenn Woodell" wrote in message
news:Fh9Tb.14746$fZ6.6394@lakeread06...
In article ,
says...

There is 2 ways to use a telescope to look at the sun.

1. Mount a sheet of white cardstock above the eyepiece and PROJECT the

suns
image on the cardstock. I do this with my 8inch Dob and it's the safest

way
to
do it.


Do this and you can do exactly what I did wth a brand new eyepiece. Melt

the
inside of it as you are getting it set up. My exciting image of the sun

grew
hazy as smoke started to pour out of my eyepiece holder.

2. But a full apature solar filter that goes over the front end of the
telescope.


This is a much better choice. It allow you to observe the sun directly.

Glenn


Yes.
Projection, is fine, _provided_ you really know what everything in the light
path is made of, _and_ you keep it aimed well.
In the case of a Dobsonian, provided you don't have eyepieces with plastic
mounting rings (becoming rarer rapidly...), it is OK. If you aim slightly
'off' with the Newtonian scope, the image misses the secondary, and is
safely formed in front of the body of the scope.
On an SCT. it can damage the bottom of the baffle tube, if the scope is not
kept well aimed, and there have been reports of cracking the corrector
plate, if the heat is allowed to build up....
Normally refractors again work OK, but will heat rapidly, if aimed 'off
target'.
The full aperture filter, is very cheap to make now (with the Baader
astro-film), and works well.
The general rule, is be very careful, and know what you are doing, before
starting. If in any doubt about safety, _don't_...
Remember to cover the viewfinder scope.

Best Wishes


  #6  
Old February 1st 04, 05:28 PM
Ernest A. Martsching
external usenet poster
 
Posts: n/a
Default

There is a caution concerning solar film usage that should also be
mentioned.
Yes it is cheaper, but you must check it every time before use for pin
holes.


"CLT" not@thisaddress wrote in message
...
"Holly" wrote in message
...
Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.


I've been on semi-vacation this week and it has been cloudy every night

but
last night. It was also too cold to go out, even though the moon was in a
phase I wanted to look at.

If you want to look at the sun, you can project, however that can be hard

on
the telescope. Get some solar film (Baader) and you can make a nice solar
filter

Clear Skies

Chuck Taylor
Do you observe the moon?
Try the Lunar Observing Group
http://groups.yahoo.com/group/lunar-observing/

************************************

Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im

going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at

the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly





  #7  
Old February 1st 04, 05:35 PM
Starlord
external usenet poster
 
Posts: n/a
Default

I've been told about that buring bit, BUT in the many MANY hours that I've spent
looking at the sun's image with my Babylon 8DOB with it's OTA turned upside down
and the ONLY thing that has happen was when I left my moon filter on an EP and
it broke. But otherwise nothing has happened, no melting, no burning,
zip,zerro,nadda. And I also have used my Stargazer Steve 4.25in F9 Dob to do the
same thing and once more nothing has happened. So if yours melted, you must have
had an awefull cheap one.


--
"In this universe the night was falling,the shadows were lengthening
towards an east that would not know another dawn.
But elsewhere the stars were still young and the light of morning
lingered: and along the path he once had followed, man would one day go
again."

Arthur C. Clarke, The City & The Stars

SIAR
www.starlords.org
Freelance Writers Shop
http://www.freelancewrittersshop.netfirms.com
Telescope Buyers FAQ
http://home.inreach.com/starlord
Ad World
http://adworld.netfirms.com

"Glenn Woodell" wrote in message
news:Fh9Tb.14746$fZ6.6394@lakeread06...
In article ,
says...

There is 2 ways to use a telescope to look at the sun.


Do this and you can do exactly what I did wth a brand new eyepiece. Melt the
inside of it as you are getting it set up. My exciting image of the sun grew
hazy as smoke started to pour out of my eyepiece holder.




---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (
http://www.grisoft.com).
Version: 6.0.573 / Virus Database: 363 - Release Date: 1/28/04


  #8  
Old February 1st 04, 08:42 PM
Dennis Persyk
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Posts: n/a
Default

Hi Holly,

It's never too cold to observe. You simply need the proper clothing.
I have an illustration of what the well-dressed observer wears at
http://home.att.net/~dpersyk/new.htm

Not very chic, but it does keep me warm in 0 F, -18 C weather.

Clear skies,

Dennis Persyk
Igloo Observatory Home Page http://dpersyk.home.att.net
Hampshire, IL


Holly wrote in message . ..
Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.
Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly

  #9  
Old February 1st 04, 09:17 PM
Kilolani
external usenet poster
 
Posts: n/a
Default

"Starlord" wrote in message
...
There is 2 ways to use a telescope to look at the sun.

1. Mount a sheet of white cardstock above the eyepiece and PROJECT the

suns
image on the cardstock. I do this with my 8inch Dob and it's the safest

way to
do it.

2. But a full apature solar filter that goes over the front end of the
telescope.


Hi Holly,

There is actually a third way, which is to use a hydrogen alpha filter. One
of the best companies making these today is Coronado. I had without question
the most fantastic views I've ever seen of the sun though one of these.

http://www.coronadofilters.com/


  #10  
Old February 2nd 04, 12:19 AM
CLT
external usenet poster
 
Posts: n/a
Default

It's never too cold to observe. You simply need the proper clothing.
I have an illustration of what the well-dressed observer wears at
http://home.att.net/~dpersyk/new.htm

Not very chic, but it does keep me warm in 0 F, -18 C weather.

Clear skies,


"You're a better man than I am, Gunga Persyk!"

;-)

Chuck Taylor
Do you observe the moon?
Try the Lunar Observing Group
http://groups.yahoo.com/group/lunar-observing/

************************************

Dennis Persyk
Igloo Observatory Home Page http://dpersyk.home.att.net
Hampshire, IL


Holly wrote in message

. ..
Just thought i would let every1 know that its too cold to look at the
telescope and that i miss the moon.
Well when it gets warm i am going to go moon gazing again and i wish i
could see jupiter and saturn.
I got a big telescope with those computer control box things and im

going
to learn how to use that.
Not that anyone cares i know.
One question is how do you look at the sun ? I mean how do you look at

the
sun through a te;lescope without going blind ?
Because i could probly do that from inside the house.

Holly



 




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