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Saturn's spokes - reflector

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#1 k.s.min

k.s.min

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Posted 15 August 2020 - 01:30 AM

This  summer  in  my  location  ( South  Korea)  with  a  lifetime  long  Monsoon  comming & make  me  hard , 50-60days contininuously  rainning  with  hummiditymeter  indicating  80-90% moisture  everyday...destroying  cloths, papers,woods,irons.....

 

l  see  some  someones's  experiences  on  the  web  the  Saturn's  many  type  spokes....with  refractors,  but  not  with  reflectors.

Are  there  anyone  who  saw  spoke  with  reflectors ?  (...........or  with  catadiopptrics)

 

l  have  another  question

My  telescope  is  not  a  pure  refracor.....it  has  a  big  18" mirror (out  of  the  optical  tube),  and  then  this  is  a   [ refl-refractor ]? 

l  don't  know  how  this  combined  optical  train  act  mostly........catadiopptric?

 

However  l  see spokes  almost  every  good  seeing  session  with  this  one.

 

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atlasm20200815_145107.jpg

 

 

  


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#2 mikeDnight

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Posted 15 August 2020 - 06:10 AM

I'm pretty confident that reflectors are equally as capable of showing the dusky spokes on Saturn's rings as refractors. If a well figured reflector is thermally stable it can reveal everything a refractor can with regard to planetary detail, so I can't think of a reason why the spokes would be any different. 



#3 davidmcgo

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Posted 15 August 2020 - 03:32 PM

Absolutely!  Back in 1990 or 1991 at Stellafane I saw them vary clearly with a 12.5” f6 dobsonian that tied for the optical competition that year. 

 

I also have some recollections with a friend’s 15” Techron and also a Lightspeed 12.5”
 

Dave




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