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  1. #1
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    Default Alignment question



    I've watched a few videos on youtube on how to align my telescope with the equatorial mount. They all showed how the same way. However, in the video tutorial cd that came with my scope it says to tilt my tube to 90 degrees. The other videos didn't say anything about that. Do i tilt it 90 or on 0?

  2. #2
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    Default

    It's hard to say without seeing what part of the alignment they are trying to accomplish. Like many things, there's more than one way to do it. What scope and mount is it? Maybe if we can find the manual, we might be able to figure out what is going on.

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  3. #3
    Joe Lalumia's Avatar
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    Default

    The axis of the MOUNT must be pointed at the North Celestial pole or the South Celestial pole-- and the tripod and mount level.

    the tube must be very parallel with the mount. With the tube also pointed at the NCP or SCP.

    If you have a polar scope in the mount this makes it easier. Then do your alignment stars, depends on the mount how many stars you do but two stars one on each side of the Meridian will get you very close.... except for what they call Cone Error.... where the tube is "slightly" not orthogonal with the mount.

    Don't worry about Cone error for now-- but a 3 star alignment helps with Cone Error.

    See this:
    http://arnholm.org/astro/polar_alignment/index.html
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  4. #4
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    Default

    Well i just learned something new. I thought all i had to do was align it with polaris. If i understand you correctly, i need to dial the telescope in using more than 1 star. I think i better go back from the very begining. Is there a tut or video somewhere that might help me understand how to align better? I'm having a hard time finding any.

    I could post a pic of my scope if that would help.

  5. #5
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    Default

    Im thinking the 90-0 reference is to balance the scope, we need your latitude and what type of scope/mount you are using

    Quote Originally Posted by excaliburlives View Post
    I've watched a few videos on youtube on how to align my telescope with the equatorial mount. They all showed how the same way. However, in the video tutorial cd that came with my scope it says to tilt my tube to 90 degrees. The other videos didn't say anything about that. Do i tilt it 90 or on 0?

  6. #6
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    Default

    It's an equatorial mount and my latitiude is 41 Degrees north.

  7. #7
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    I am ASSUMING (which I should not do) that this is a goto scope of some sort with a hand controller-- if it is NOT and you want to do visual only -- getting Polaris in the eyepiece of the main scope, and setting up as above level tripod level mount-- scope lined up on the polar axis-- is plenty good for visual observing.

    Watch these two videos:

    http://vimeo.com/16401676

    and this one:

    http://vimeo.com/14324981

    clear skies to you-- and keep working with the rig you already own.
    Last edited by Joe Lalumia; 09-19-2011 at 01:09 AM.
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  8. #8
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    Default

    In my very limited experience with an EQ mount, I can only offer that on EQ 3-2 and later mounts, the Tube must be turned to 90 degrees on the RA axis---1 to open the polar alignment bore and 2 to keep you from bumping your head on the scope when you straighten up from looking thru the sight hole or the polar alignment scope.
    At least it is that way on my synta EQ 5 mount.

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  10. #9
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    Default

    Joe, it isn't a goto scope with hand controls. Just slomo cables.

    Hawk, i think i'll try it both ways. I'll line itp up with the tube straight over the right ac. with the weights ponting down to the ground over 1 leg. Then i'll do the same thing but tilt it to 90 then find polaris and see how that goes.

    Thanks for the links Joe.

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  12. #10
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    Default

    Watch the two videos I posted up--

    They will help you.
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