Tall Piers was Re: 73P Fragment B -- a Bright, Beautiful Comet!


Apr 6, 2006

 


----------------------------

#14764 Apr 6, 2006

Hi Dennis,

Thanks for posting. The images look nice. It is becomming a long one.

P.S. Did you run across any quick and dirty structural calculators

when doing your pier research? I am designing an elevated observatory

and need to run some structural calcs on the columns and struts.

Thanks, Rick

--- In ap-gto@yahoogroups.com, "Dennis Persyk" dpersyk@...> wrote:

>

> Comet 73P/Schwassmann-Wachmann 3 was featured in the May

> Sky&Telescope and Astronomy magazines. It has fragmented into many

> pieces which are growing brighter as they approach the sun.

>

> I imaged fragments B and C last night. Fragment B was considerably

> brighter and had a beautiful tail over 35 arc minutes long. It is

> forecasted to become a naked eye comet in the coming months. I have

> posted the B images on my web page linked below.

>

> Images and supporting data at

> home.att.net/~dpersyk/new.htm

>

> Thank you for visiting my site.

>

> Clear skies,

>

> Dennis Persyk

> Igloo Observatory Home Page dpersyk.home.att.net

> Hampshire, IL

>



----------------------------

#14765 Apr 6, 2006

Hi RIck,



Analysis of piers taller than 84 inches gets too complicated for

me. I tried to find engineering texts that cover deflection of

rebar-reinforced concrete columns but was unsucessful. I handle pipe

piers less than 84 inches hight embedded in a concrete base in

home.att.net/~dpersyk/Pier_Design.htm .



Clear skies,



Dennis



--- In ap-gto@yahoogroups.com, "Rick Wiggins" rickwiggins@...>

wrote: >

> Hi Dennis,

> Thanks for posting. The images look nice. It is becomming a long

one. > P.S. Did you run across any quick and dirty structural calculators

> when doing your pier research? I am designing an elevated

observatory and need to run some structural calcs on the columns and

struts. > Thanks, Rick

>

>



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