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Who's using 6" Achro Chinese refractors on Mars?



 
 
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  #1  
Old July 15th 03, 06:22 AM
Orion
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Default Who's using 6" Achro Chinese refractors on Mars?

What is your max high power your using? How's it lookin'? Details please!!!
Thanks!
Orion



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  #2  
Old July 15th 03, 07:49 AM
David Nakamoto
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Default Who's using 6" Achro Chinese refractors on Mars?

"Orion" wrote in message
...
What is your max high power your using? How's it lookin'? Details

please!!!
Thanks!
Orion


Not using a 6-inch refractor, but planning on using a 5-inch Mak.

The quick general answer is: Rule-of-Thumb is 20x to 30x per inch of
aperture,
but you can push this up to 80x per inch of aperture IF the seeing
conditions and
your optics are good enough. Since the Chinese refractors have only
performed
fair (middle of the road) when me and my buddies have used them, I would
guess
that you can't push then too much beyond the 30x per inch level.

This would mean around 180x to 200x.

And this is a general rule.



  #3  
Old July 15th 03, 01:55 PM
Phil Wheeler
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Default Who's using 6" Achro Chinese refractors on Mars?

David Nakamoto wrote:
"Orion" wrote in message
...

What is your max high power your using? How's it lookin'? Details


please!!!

Thanks!
Orion



Not using a 6-inch refractor, but planning on using a 5-inch Mak.

The quick general answer is: Rule-of-Thumb is 20x to 30x per inch of
aperture,
but you can push this up to 80x per inch of aperture IF the seeing
conditions and
your optics are good enough.


I'm using a Celestron C5+ SCT with new coatings done at Celestron (in
early June) for Mars; my impression is that the C5+ has excellent
optics. One morning in June I was able to push to 300x (60x per inch)
and get improved detail. Right now I'm at around 120-150x (highest I
can go this am) and seeing the SPC and some markings in the middle of
the planet (my first Mars experience is this year, so I really have not
researched what I am seeing). Alas, if the sky does not cooperate, the
best optics in the world (non-adaptive) will be of no use.

Looks like Mars and the Moon will be close tomorrow morning.

Basically, I am prepping for Aug and hoping for good conditions then.

Phil

  #4  
Old July 15th 03, 01:59 PM
Phil Wheeler
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Default Who's using 6" Achro Chinese refractors on Mars?

Phil Wheeler wrote:
David Nakamoto wrote:

"Orion" wrote in message
...

What is your max high power your using? How's it lookin'? Details



please!!!

Thanks!
Orion




Not using a 6-inch refractor, but planning on using a 5-inch Mak.

The quick general answer is: Rule-of-Thumb is 20x to 30x per inch of
aperture,
but you can push this up to 80x per inch of aperture IF the seeing
conditions and
your optics are good enough.



I'm using a Celestron C5+ SCT with new coatings done at Celestron (in
early June) for Mars; my impression is that the C5+ has excellent
optics. One morning in June I was able to push to 300x (60x per inch)
and get improved detail. Right now I'm at around 120-150x (highest I
can go this am) and seeing the SPC and some markings in the middle of
the planet (my first Mars experience is this year, so I really have not
researched what I am seeing). Alas, if the sky does not cooperate, the
best optics in the world (non-adaptive) will be of no use.

Looks like Mars and the Moon will be close tomorrow morning.

Basically, I am prepping for Aug and hoping for good conditions then.


Should add: Location is a mile from the Pacific Ocean in So Calif (a few
miles S of LAX).

Phil

  #5  
Old July 15th 03, 03:29 PM
Scribe2b
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Default Who's using 6" Achro Chinese refractors on Mars?

hi
with an NPC filter and Pentax 10.5, mars in the CR150HD still doesnt look as
sharp as in my alter 703, but for the money, the Synta 6 is the best big
refractor deal going by far.

some of the synta 6 achromats have really surprisingly excellent optics, but
you need to filter the color. eyepiece quality is also very important.
jc
  #6  
Old July 15th 03, 05:01 PM
Darren Bly
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Default Who's using 6" Achro Chinese refractors on Mars?

I use my 6" with a Chromacor I and normally use 180x to 300x.

Darren in Bakersfield

"Orion" wrote in message ...
What is your max high power your using? How's it lookin'? Details please!!!
Thanks!
Orion



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  #7  
Old July 15th 03, 05:59 PM
Unbound Quark
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Default Who's using 6" Achro Chinese refractors on Mars?

Someone's up there using a telescope??

I'd like to get mine there, but I'm having
trouble getting a suitable rocket.

 




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