Re: Report on Maxpoint


Aug 29, 2005

 


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#20176 Aug 29, 2005

Following an earlier posting, I would like to report back favorably on

Maxpoint. I have been using Maxpoint as a hub principally, to

facilitate access of several programs to the telescope control via the

same COM port, in my case MAXIM-DL and Starry Night. Up to now I have

been using the native pointing model offered by my Gemini G11 mount.

However, I have found the Maxpoint interface very nice for buiding the

pointing model - very nice. Much easier model building process when

compared to the handbox that comes with the Gemini. In particular, the

bright star list seems larger and only stars visible for you are

offered. This can be taylored to your particular viewing location - in

my case many local obstructions preclude views in particular

directions. The model resulting is also very accurate (as it the

Gemini model), but the interface is really good.



It works very well.



Randy



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#20193 Aug 30, 2005

hi randy - can you go into detail about your process for setting

maxpoint in motion with the gemini/losmandy mount. i can connect with

no problem but my slews are way off.



i agree with you that building the model with maxpoint will give a

better result and i like working with the interface.





best

david

peterborough



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#20202 Aug 30, 2005

Well,

TO start with I Cold Start the Gemini mount in the standard "park

mount" position pointing north with the counter weight in the down

position, and next select the "align telescope - goto bright star"

sequence, then the Gemini slews to near the target star. Then use the

hand controller to center the first star and finally press

the "synchonize" button. This estalishes the initial calibration point

for the mount. From here on, MAXPOINT is in charge. At this point

proceed to add stars to the calibration model. I think the

instructions indicate that a minimum of 6 stars are needed to build

the initial model - I lost patience after about 10 stars. After this,

goto's were very close. I use an illuminated reticle eyepiece to

improve the model building process - sometime hard to judge where the

center of the field is in the eyepiece without a reticle and this

significantly reduces one of the sources of randomness and error in

the model building phase. After this I have found the goto's to be

embarrasingly spot on my CCD chip - a bit like shooting fish in a

barrel. If there is such a thing as the thrill of the hunt, MAXPOINT

makes you feel like a spotlighter in a deer hunt. But this is a good

thing for CCD-imagers as time is a precious commodity and fooling

around hunting for the target can be a big time sink when so many

other subsequent steps all demand their fair share of attention. I

really appreciate the "center object" feature in the Maxim telescope

control feature. There seems to be a sort of Zen associated with

making all of this work - I now seem now to very quickly get excellent

goto's where before I struggled with wide variations in success - some

nights encouragingly good, and some noghts a total disaster, and no

real clue as to why. But with time, the scope and equipment and

software finally seem to yield to the MASTER! and perform. Kind of

like breaking a horse I guess. Anyway, I am quite pleased and hope to

be competing with Allen Chan soon!



Best regards

randy



- In MaxImDL@yahoogroups.com, "dhersey0308" dhersey1@c...> wrote: > hi randy - can you go into detail about your process for setting

> maxpoint in motion with the gemini/losmandy mount. i can connect

with > no problem but my slews are way off.

>

> i agree with you that building the model with maxpoint will give a

> better result and i like working with the interface.

>

>

> best

> david

> peterborough



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