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  1. #1
    gus1911's Avatar
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    Default Need advice from an Orion XT10g user (or any Orion xxg user)



    Last night I tried the only feature of my Orion XT10g that I had not yet tried - the go to feature. I realized early on that I would encounter some confusion. At some point during (preferably before) beginning alignment, one must turn on sidereal tracking - I would assume. The manual does not address tracking at all in the go to directions.

    I followed the instructions to the letter for go to, and here's my first question: How can I center an alignment star if the star continually moves out of my 8x50 illuminated cross hair finder? As soon as the star is centered it immediately moves out of the crosshair's center before I can hit the "enter" button on my high power illuminated eyepiece. Then before I even select my second star, the first star has drifted far from center.

    Same problem with the 2nd alignment star. At this point I need to change eyepieces to the 2" wide field. More delays for the target star to float away.

    I attempted two alignment procedures and managed to complete one, however, I knew just from viewing the sky that I was nowhere near M13. And still no sidereral tracking.

    At what point do I ask the scope (computer) to: "Please, if it's not too much trouble, engage sidereal tracking." Also, how do I get to the menu to select it? I know where the tracking rates are, but I need to get to that menu from "what point?"

  2. #2
    Bob327's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    I am NOT familiar with These new fangled GoTo Dobs.... BUT most GoTO mounts DO NOT TRACK until AFTER they are aligned..and you already discovered the reason...

    Also why switch eyepieces..use a finder scope or Telrad and keep the same eyepiece in the focus tube !

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  3. #3
    bigjack's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    He's got it no tracking (at least that you can control) until after alignment. They normally turn it on automatically after a GOTO at the proper rate, Lunar or Sidereal, if you need Solar you must set it yourself. My Teletrack AG-Z uses the same controller as the Dobs. Your alignment stars should be at least 90 deg apart and between 20 and 50 Deg Alt for best results. At least that the way mine is.
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  4. #4
    gus1911's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    The alignment eyepiece magnifies at 196x. That's to ensure that your alignment stars are precisely centered in your FOV after they're centered in the finder. The manual says precision alignment is critical. I would certainly accept that as being true.

    After alignment, you switch to the wide field, low power 46x eyepiece so you can see the DSO, such as M13. What I just stated here is precisely what's in the user manual - that's why the XT10g comes with these two specific eyepieces, the 196x eyepiece has illuminated cross hairs for even more precision.

    I appreciate your reply, but I would like to hear from someone who has an Orion go to, so we can speak the same language.

  5. #5
    gus1911's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    Quote Originally Posted by bigjack View Post
    They normally turn it on automatically after a GOTO at the proper rate, Lunar or Sidereal, if you need Solar you must set it yourself.
    Apparently you're correct and mine does the same. After alignment, tracking in sidereal is not automatic. I suppose that's the time I need to find the menu that sets the tracking rate.

    Thanks.

  6. #6
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    I have an XT8g. These scopes do not start tracking until after you get the "Alignment Successful" message. At that point the scope will automatically start Sidereal tracking.

    When I am doing my alignment, I point the scope such that the alignment star is upstream of the illuminated cross hairs and let the star drift through the center. I have my finger on the ENTER button and when the star is centered I push ENTER. Sometimes I guess wrong and the star will miss the crosshairs so I then move the scope again and try it a second time, sometimes a third time. That's why I generally use Polaris as my second alignment star so I don't have this issue.

    BTW, I think your illuminated ep is 12.5mm & the scope is 1200mm so the ep power is 96, not 196.

  7. #7
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    Just start with the tube pointing true north and level horizontaly...manually push to a bright star, center it..and in the menu, 'enable tracking'..done.

    It's all in the owner's manual.

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  8. #8
    gus1911's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    Quote Originally Posted by dan777 View Post
    BTW, I think your illuminated ep is 12.5mm & the scope is 1200mm so the ep power is 96, not 196.
    You're right. I don't know where the 196 came from!!?? I think I was using differential calculus when simple math would have done it!!

    You and I have the same manual, so we're on the same page - so to speak. I think the manual is excellent, best user manual I've seen in a while, however, nowhere does it say in the manual that sidereal tracking automatically begins after the "Alignment Successful" message.

    I can't really do anything outside - the nights here have been terrible. Nonetheless, I can test everything indoors with some "pretend 2 star" alignment runs. I'll confirm tomorrow that sidereal tracking begins after a successful alignment.

    How's your success rate been on DSO with the alignment procedure as you do it?

    Thanks for your help.

  9. #9
    gus1911's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    Paul

    I don't think you and I are on the same page. I'm addressing the 2 star alignment process. I know how to auto track. And there's nothing in any menu that says "enable tracking."

    To which manual are you referring? It's not in my manual.

  10. #10
    dan777's Avatar
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    Default Re: Need advice from an Orion XT10g user (or any Orion xxg user)

    Quote Originally Posted by gus1911 View Post
    How's your success rate been on DSO with the alignment procedure as you do it?
    I am very happy with it. I previously had an Orion Intelliscope and this GoTo is more accurate than the Intelliscope. For DSOs I use a 10mm ep which has an FOV of 0.6°. The object is generally in the FOV or if not, it is close. I have a 24mm ep with a 1.3° FOV that is a great finder ep but I seldom need to use it as a finder ep.

 

 
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