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    Default problems aligning NexStar



    I had a lovely clear night, but even when I successfully executed the "sky align" procedure (not every time), I could see nothing through the eye piece. I was using the eye piece that came with the NexStar (25 mm). I do have a 20 mm eye piece which I will try tomorrow, but shouldn't the 25 mm work? In googling around, I found a message on the Celestron site with instructions for "making sure the finder scope is aligned with the telescope." That was not in the manual. Is that what I need to do? Thank you very much.

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    Default Re: problems aligning NexStar

    Hello Sandy and welcome to the forum. Where are you in PA? I'm in Kingston.

    Yes, you need to align your finder scope. It's something done best during the day. You don't need to align your scope/mount to do it. You can just use the direction buttons to move the scope. With your 25mm EP pick a distant object such as a radio tower or far off building. Once the object it in the center of your EP and focused, align the crosshairs on the finder scope to the same object. Once complete, use a shorter focal length EP and fine tune the crosshairs on the finder scope further. That should take care of your alignment. From that point on, every time you use your scope, before doing a scope/mount alignment, pick a bright star and tweak the finder if needed.

    While you're out in the daylight it's also a good time to get a feel for your direction buttons. Focus the scope on a Stop Sign or something with words on it. Take note of how it looks in the scope. Upside down (inverted) or backwards (mirrored). Tinker with the direction buttons to see how they correspond to the directions that the sign moves in the EP. After a few minutes of this you should get a feel for how things are oriented in the EP. Much easier in the daylight.

    As for not seeing anything with the 25mm. Did you adjust the focus knob? When changing EPs you will always have to rack the focuser in or out to focus the new EP.
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    Default Re: problems aligning NexStar

    Hello and welcome to the Forum.

    This may sound dumb but it has happened to all of us over and over again. Some people have experienced it dozens of times others have experienced it hundreds of times, but did you remember to take the dust cover off the front of the scope?

    Let us know.

    Cheers,
    JT
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    Default Re: problems aligning NexStar

    Hello and thanks for the help, Rick. I had to go to ABQ to visit a young granddaughter. I was able to align the finder with your advice and this am I was finally able to see a few things -- the moon! Venus! Spica! In focusing on Venus, I see a black dot in the middle of Venus that I don't see when I focus on the moon. Any thoughts?

    Thanks so much!
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    Default Re: problems aligning NexStar

    A black dot in the middle of an object usually means that you are out of focus. Adjust the focus knob to make Venus (or any other object) as small as possible.

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    Default Re: problems aligning NexStar

    Thanks so much. Good to hear the problem is not the scope, but my lack of skill. I so appreciate the advice I am getting here.

    Sandy

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    Default Re: problems aligning NexStar

    Hello!

    I see other people complaining about aligning with the start finder. Is there another brand/type that people like?

    Thanks so very much

    Sandy

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    Default Re: problems aligning NexStar

    Sorry, "star finder scope"

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    Default Re: problems aligning NexStar

    Quote Originally Posted by Sandy892 View Post
    ...I see other people complaining about aligning with the start finder. Is there another brand/type that people like?...
    I use only a red dot finder on my scopes. For me, the magnification of an actual finder scope is confusing, especially as its light gathering power will show me many more objects than the one I'm trying to align to, and which one is it?

    Anyway, the easiest way to align your finder (of any kind) with the scope, is to do it in the daytime. Choose an object as far away as possible. If it's a telephone pole, go for one of the insulators to start. Get it in the center of your finder, and then take a look through your scope. With a 24mm or 32mm eyepiece, you should be able to find the object in your field of view, or just outside. Next, get the object in the center of the scope view. Go back to the finder and adjust the finder to get the object centered in the finder again.

    A couple of iterations of this, and you should be good to go. When you think you're good. Select a different far away object, and center in the finder, and check to see that it's centered in the scope view, too.

    Now when you go out in the evening and see the first few stars coming visible. Get one centered in the finder, and take a look in the scope. It should be right there about in the center of your view.

    Good luck, and clear skies!

    smp
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    Default Re: problems aligning NexStar

    Sandy

    As reviewed by other folks the star finder is really junk. I am new at this so cannot give any advise on other scopes. I found that I would go to turn off the finder scope and move the one alignment button instead, start all over, duh.
    Mark

 

 
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