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  1. #11
    KathyNS's Avatar
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    Quote Originally Posted by pederv View Post
    Is it normal to do the polar alignment with the OTA not mounted?
    I'm not sure how you could polar align with any equipment on the mount.

    Maybe yours is different, but with mine (HEQ5), I have to start with the RA axis in the Polaris transit position, and then spin it to the current Polaris hour angle position. Since the Polaris hour angle depends on the time of day and time of year, I need to have the full 360 degrees of rotation of the RA axis to do that. So 50% of the time, the OTA will end up on the low side of the mount and tripod strikes are almost guaranteed. So I only polar align with the OTA off.

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    DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier);
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  2. #12
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    Quote Originally Posted by ghswen View Post
    Ken,

    Congrats on the image. I know you were asking me about guiding with my 254N and EQ5pro mount.

    Here's a screen shot of my setup tonight.

    Thank you Gordon
    I like your guiding graph
    I'm envious
    Maybe Gus is right and the thread should be moved to the link he provided
    Ken

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    8" Newtonian with EV2NM moterized focuser,Baader MPCC , WO FLT98 ddg ,WO Flat4 reducer flatener ,Celestron CGEM mount ,Celestron USA built CGE mount ,Orion mini guider pkg ,Canon EOS Rebel xs ,the newEOS 60Da,and boxes of eyepieces collecting dust

  3. #13
    pederv's Avatar
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    Ken, Keith,
    Thanks.
    I haven't hit my OTA on the mount (yet), even when the OTA is parallel to and about a foot and a half off the ground. It never did seem right to have the counter weights above the OTA while doing the polar alignment. My 130mm doesn't have a polar alignment scope so I never had this issue.
    Next time I get a clear night I'll try doing the alignment before loading up the mount, it should be alot easier to tweak the altitude without the weight. I'll probably end up using my weight to seat the mount feet before trying to level the mount.

    Clear Skies
    Name - Verne / Call sign - KF7UHL

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    / Orion 130ST on an AstroView Mount with RA Drive
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  4. #14
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    Great shot kwalker.
    Declan.
    Celestron 8"Edge HD SCT.

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  6. #15
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    Thanks Declan
    It would have been nice to have some pipoint round stars but I'll figure it out.
    Ken

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