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Newton or Dobson

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#26 izar187

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Posted 18 February 2024 - 07:54 PM

Only have one dob, so sometimes refer to my 13" as a dob, because it is on a dobsonian mount. : )

Sometimes as a 13" newt dob, but mostly people know what you mean either way.

My smaller newts are on alternate kinds of alt-az mounts, so often use just some version of alt-az mounted newt.



#27 areyoukiddingme

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Posted 18 February 2024 - 11:02 PM

Yeah... gratuitous surrogate outrage is kinda... ~White Night Syndrome~    Tom

 

What is White Knight Syndrome?

 

"Plenty of people fantasize about being saved by a knight in shining armor, but some of us fantasize about being that knight. There’s a term for that: White Knight Syndrome. It’s also sometimes called a “savior complex” or “rescue complex,” and it might sound familiar if you’ve ever found yourself going to great lengths to help other people. We’ll fill you in on what White Knight Syndrome is, exactly, and the different types and causes of it. We’ll also offer signs that you may be a white knight, yourself, and also how to take that shining armor off, for your own sake."  ~

 

Example: My wife (79) and I (76) were happily loading groceries into our trunk and a well-meaning 40-ish lady came up with a big smile on her face and offered, "Here - let me load that for you!" I said, "Thanks! - But our doctor encourages us to stay active for our health." Lady persisted, "But I'm a caring person; Here - let me help!" --- and continued to grab our groceries and accomplish her Quixotic deed, regardless. She finally left, commenting yet again, "I'm a caring person." Well meaning and --- creepy!

 

I agree that Sir Isaac most certainly doesn't need our help in defending his legacy.    Tom

 

All true, but if anyone says anything bad about a Televue eyepiece, it's good to know that uncle Al is being most justly protected on these very fora!



#28 TOMDEY

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Posted 18 February 2024 - 11:33 PM

All true, but if anyone says anything bad about a Televue eyepiece, it's good to know that uncle Al is being most justly protected on these very fora!

Yes indeed, the things that matter most... downright patriotic!    Tom



#29 Oberon

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Posted 19 February 2024 - 07:00 AM

If you are bewildered or confused my job is done…
 

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  • izar187, areyoukiddingme, therealdmt and 4 others like this

#30 25585

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Posted 19 February 2024 - 02:57 PM

Well, I'm afraid I might take issue with that, as the mount is just an altazimuth.  A Dobsonian is a simple Newtonian OTA on a simple 2-arm altazimuth mount (most often with open-faced gravity-constraint altitude bearings).  If people see a big refractor on such a simple open-faced altitude bearing altazimuth mount, people don't call it a "Dob", but a refractor.  Indeed, Dave Kriegie and Richard Berry's book, "The Dobsonian Telescope" doesn't even mention any optical configurations other than the Newtonian.  My 9.25 inch Schmidt-Cassegrain sits on its 2-armed fork altazimuth mount when running in the altazimuth mode, yet it is still called an SCT.  Oh yea, you could put an SCT OTA on such an open-faced altazimuth mount, but it remains an SCT.  Clear skies to you.

waytogo.gif

 

The Dobson approach/mindset was DIY from the ground up, from finding and making the components, and then on. 
 

https://m.youtube.co...h?v=snz7JJlSZvw



#31 Echolight

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Posted 19 February 2024 - 04:16 PM

Yeah, but Newton discovered that apples will fall out of trees if you don't pick them first.




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