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#501 deSitter

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Posted 01 May 2018 - 01:44 AM

1888 star atlas to 6.5 from -34 north - by Hermann J. Klein - free download - look for gear icon dropdown list for PDF.

 

Did not know this existed until today! Ideal companion for Webb. Star maps are rather primitive in comparison to today. In particular, constellation boundaries had not been formalized. Nevertheless this atlas feels modern.

 

https://books.google...epage&q&f=false

 

-drl


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#502 clamchip

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Posted 01 May 2018 - 03:36 PM

I haven't seen this before, Celestron's rich history:

https://www.celestro...ns-rich-history

 

Robert


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#503 deSitter

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Posted 02 May 2018 - 09:16 AM

1888 star atlas to 6.5 from -34 north - by Hermann J. Klein - free download - look for gear icon dropdown list for PDF.

 

Did not know this existed until today! Ideal companion for Webb. Star maps are rather primitive in comparison to today. In particular, constellation boundaries had not been formalized. Nevertheless this atlas feels modern.

 

https://books.google...epage&q&f=false

 

-drl

This must be beautiful book. The maps are clearly colored plates with an overlay of wax tissue as was done at the time, probably to prevent the ink from bleeding. The DSOs are numbered according to John Herschel's General Catalog (GC), whence the N in Dreyer's NGC, which was a new GC. The GC is more or less forgotten today and this is the first atlas I've seen using its identifiers. Norton's of course uses William Herschel's baroque notation which predates the GC.

 

It's strange to see constellation boundaries just drawn around stars as if one were corralling horses. But even those boundaries had a degree of formality. They were defined by Friedrich Argelander in his own star atlas of 1843. The boundaries we now know, precisely defined runs of RA and DEC at epoch B1875, were not formally adopted until 1930. Early versions of Norton's have the old Argelander corrals.

 

The star positions seem very carefully recorded, and it's really amazing how much precession has shifted things around just in 130 years.

 

-drl


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#504 terraclarke

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Posted 17 May 2018 - 01:50 PM

I just got around to reading this wonderful, touching post and I wanted to share it with my Classic friends in this forum.

 

https://www.cloudyni...as-all-it-took/

 

 

You owe it to yourself to read it. It will make you feel good for the rest of the day! :)


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#505 tim53

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Posted 17 May 2018 - 06:04 PM

I haven't seen this before, Celestron's rich history:

https://www.celestro...ns-rich-history

 

Robert

Frankly illustrates their ignorance of their own history.  That "1970" C8 isn't.  more like 75.  The earlier ones would be tricolors.

 

-Tim


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#506 deSitter

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Posted 17 May 2018 - 10:48 PM

Hey Tim did y'all ever talk about lab coats vs. telescope honeys for advertising?

 

:)

 

-drl


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#507 semiosteve

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Posted 18 May 2018 - 08:40 AM

I just got around to reading this wonderful, touching post and I wanted to share it with my Classic friends in this forum.

 

https://www.cloudyni...as-all-it-took/

 

 

You owe it to yourself to read it. It will make you feel good for the rest of the day! smile.gif

Thanks for pointing this out. Our stories may differ in particulars, but resonate at a deeper level. I suspect that a lifetime with the stars changes you; intimacy, awe, beauty, its hard to describe but I think it shows in this post as Terra noted, its well worth reading. For me it is like a one page version of reading Leslie Peltier Starlight Nights - maybe better because it includes family.

 

I like to think that folks here who can appreciate this "touching post" are part of my extended family whether we know each other or not.


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#508 terraclarke

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Posted 18 May 2018 - 08:42 AM

Well said Steve! My sentiments exactly! heart.png


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#509 Defenderslideguitar

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Posted 18 May 2018 - 09:31 PM

I just got around to reading this wonderful, touching post and I wanted to share it with my Classic friends in this forum.

 

https://www.cloudyni...as-all-it-took/

 

 

You owe it to yourself to read it. It will make you feel good for the rest of the day! smile.gif

 

Terra   thanks so much for turning us on to this eloquent and inspiring post............just what we needed.

b



#510 DAVIDG

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Posted 07 July 2018 - 07:40 PM

 The heat is over in Delaware and it is a beautiful evening . So I have the my old Coulter 13.1"  setup waiting for darkness and a  nice trip around the sky. The old beast has a 4.25 f/4 mounted on the back, that they sold as a kit and the mount is wired up with my homemade digital setting circle WIFI interface that talks to SkySafari. With it I can an object I want to observer in under a minute.  I'll  pop in my 28mm Classic Pretoria coma corrected eyepiece for pinpoint star images out the edge of the field the way I'll go.

 

              - Dave  

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#511 Chuck Hards

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Posted 07 July 2018 - 08:03 PM

Very nice.  Did you have to refigure that mirror?



#512 DAVIDG

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Posted 07 July 2018 - 08:27 PM

 The mirror isn't a dog like some so I haven't touched it.  It is on the retirement list to refigure it. Yep "optical snob Dave" does use 1/2 wave optics. The old beast with the 28mm Pretoria gives an nice view and is great for DeepSky. Saw Venus, Jupiter and Mercury so far. BTW  the GRS is easily visible now. Waiting for it to get  good and dark so I  can scan the Summer Milky Way.  Really enjoy the nebulas in Sagittarius  and Scorpio  The Push To DSC system that talks to Sky Safari is what I really enjoy. I'll easily view 50 objects tonight and it will take me a 1 minute to find what I want to observe. Plus Sky Safari show me the sky around were I'm pointed and stuff that I can observe right there.  

 

             - Dave 


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#513 deSitter

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Posted 09 July 2018 - 01:09 AM

I might buy this.

 

https://www.prohocke...ant=39889534660

 

-drl


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#514 terraclarke

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Posted 09 July 2018 - 08:32 AM

I might buy this.

 

https://www.prohocke...ant=39889534660

 

-drl

What does that have to do with classic telescopes. Seems like a post for OTO! :foreheadslap:



#515 shredder1656

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Posted 09 July 2018 - 09:03 AM

What does that have to do with classic telescopes. Seems like a post for OTO! :foreheadslap:


C'mon, Terra. :) ;) Even a greenhorn like me caught the name on the jersey. Aren't Messier objects classics?

Edited by shredder1656, 09 July 2018 - 09:04 AM.


#516 terraclarke

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Posted 09 July 2018 - 11:21 AM

Oh, okay! Sorry, all I saw was hockey! :lol:

 

(I always hate a game I can’t understand!) :confused:



#517 deSitter

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Posted 09 July 2018 - 01:27 PM

Oh, okay! Sorry, all I saw was hockey! lol.gif

 

(I always hate a game I can’t understand!) confused1.gif

I was googling for pics of M11 because visually last night the central star was WAY brighter than I remembered - and that came up! I want it! Plus he was a great player before he let the Rangers steal his soul.

 

-drl


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#518 terraclarke

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Posted 09 July 2018 - 01:34 PM

When I was living in Michigan working for NWA as a flight attendant I had a b/f that was a huge Redwings fan. He tried and tried to teach me how hockey worked. It was hopeless. And all he wanted to do was stay home and watch the Redwings on TV. Needless to say, that relationship did not end well. :lol:


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