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Re: [Losmandy_users] Re: pier location in permanent dome?


Apr 7, 2003

 


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#14696 Apr 7, 2003

I've got a 10 foot Home-Dome coming hopefully later this month and am

working on the building design. My question is: where should the pier

go? I've got a 48" tall massive steel pier from a surplus military

antenna that I'm going to use.



The mount is a Losmandy Titan with a C11 on it. It would seem from

measurements of scope movements while setup in my office that the

center of the dome would work fine. Does anyone have any practical

advise based on their own experiences with the Titan or G11 or other

similar mount design?



Pier height is another thing I'm going to have to struggle with, but

that is another issue.



Regards,



Dave Lane



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#14698 Apr 7, 2003

Dave:



If you plan to view in a 360d field, the center of the dome is the only place for it to go. As for ht. of the pier, if you have it set-up inside, you can determine how high you find comfortable for the majority of your viewing targets and what you plan to do; view, photo/image (may be different from plain viewing ht.). You can adjust where the bottom of the pier should be in your building plans. Do check that the Titan's mounting surface is truely horizontal (perpendicular to the pier).

Harry ----- Original Message -----

From: Dave Lane

To: Losmandy_users@yahoogroups.com

Sent: Monday, April 07, 2003 9:06 PM

Subject: [Losmandy_users] pier location in permanent dome?





I've got a 10 foot Home-Dome coming hopefully later this month and am

working on the building design. My question is: where should the pier

go? I've got a 48" tall massive steel pier from a surplus military

antenna that I'm going to use.



The mount is a Losmandy Titan with a C11 on it. It would seem from

measurements of scope movements while setup in my office that the

center of the dome would work fine. Does anyone have any practical

advise based on their own experiences with the Titan or G11 or other

similar mount design?



Pier height is another thing I'm going to have to struggle with, but

that is another issue.



Regards,



Dave Lane







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[Non-text portions of this message have been removed]



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#14705 Apr 8, 2003

Dave;



The Titan is huge, about three times larger than a G-11 mount. When I

unpacked mine everyone was amazed at its size. Center you mount/pier in the

center of your dome. You'll love it once you get things purring. Have fun

with your early Christmas present...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: www.svic.net/jmize

29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: "Dave Lane" dlane@...>

To: Losmandy_users@yahoogroups.com>

Sent: Monday, April 07, 2003 9:06 PM

Subject: [Losmandy_users] pier location in permanent dome?





> I've got a 10 foot Home-Dome coming hopefully later this month and am

> working on the building design. My question is: where should the pier

> go? I've got a 48" tall massive steel pier from a surplus military

> antenna that I'm going to use.

>

> The mount is a Losmandy Titan with a C11 on it. It would seem from

> measurements of scope movements while setup in my office that the

> center of the dome would work fine. Does anyone have any practical

> advise based on their own experiences with the Titan or G11 or other

> similar mount design?

>

> Pier height is another thing I'm going to have to struggle with, but

> that is another issue.

>

> Regards,

>

> Dave Lane

>

>

>

>

> To unsubscribe from this group, send an email to:

> Losmandy_users-unsubscribe@egroups.com

>

>

>

> Your use of Yahoo! Groups is subject to docs.yahoo.com/info/terms/

>

>

>



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

#14712 Apr 8, 2003

Dave,.



Place the pier centered in the E-W direction and in the northern hem. offset

to the S so that the intersection of the RA and DEC axes is at the center

point of the dome.



Robert Branch, the Astronut





[Non-text portions of this message have been removed]



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

#14744 Apr 9, 2003

Dave,



If you project a line through the intersection of the RA and DEC axes to the

floor of the observatory you will find that it will not move ai any position

the telescope is placed in. The offset is small with a GEM of the size we

use. My G-11 is offset 3 3/4 inches to the south at 34 deg. N. lat. The only

pier that is always dead center in a dome is an Alt.-Az. ( Dob )



Good luck with your project-- Old Bob the Astronut





[Non-text portions of this message have been removed]







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