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help with bushnell northstar

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Re: help with bushnell northstar

Post by Jne_K on Mon Dec 19, 2011 8:50 am

You're very welcome.

Re: help with bushnell northstar

Post by brucem on Sun Dec 18, 2011 9:48 pm

Hey, thanks very much!

Re: help with bushnell northstar

Post by Jne_K on Sun Dec 18, 2011 6:51 pm

Hi

You mentioned mirrors. I assume we are talking a Northstar reflector? Or do you have a Northstar Mak?

Really not cost effective to replace the mirrors if it is a reflector. By the time you upgraded with better mirrors, you would far exceed the cost of the telescope and still have a pretty basic mount and computer. Might as well put that money into a new telescope. If it is a Mak, there is no way to upgrade the the optics, as no one sells Mak optics as separate items.

If it is a reflector, best thing you can do is to make sure the mirrors are properly collimated and that is most effectively done with a good laser collimator.
Do a quick check on collimation be defocusing a bright star until it appears as a series of rings. If the rings are oblong or the center of the rings is off to one side, you have a collimation issue. You want those rings to be perfectly and beautifully concentric.Truth is, the mirrors on reflectors, even at those prices, are not too bad. Poor performance is mostly a matter of improper collimation or poor eyepieces.

I would also put my money into one or two really decent telescope eyepieces instead of buying a deluxe set with lots of eyepieces, most of which will be of little use. Investing in quality eyepieces is an especially good investment because you can always use them when you get your next telescope.

Also, don't be too quick to blame the scope for poor performance. Observing conditions can vary night to night and even hour by hour and they are often the limiting factor on performance, not the scope. There is also the matter of light pollution and so on.

Finally, there is only so much performance you can squeeze out of a given size of telescope. Small scopes don't show the detail you get with larger scopes and small scopes can't handle as much magnification as larger scopes. Keep that magnification down and you'll get better images, especially on small telescopes. For example, 120x is really pushing it for a 60 mm refractor, but a 6" (150mm) scope won't even be breaking a sweat at that magnification.

help with bushnell northstar

Post by brucem on Sat Dec 17, 2011 6:29 pm

I would appreciate some help from anyone who may be able to give it. I have an out-of-the-box Bushnell "Go-To" Northstar, and a very nice 20 piece clelstron eyepiece set. I upgraded from the standard model becacuse of the motorized tracking-a hellova lot nicer and not as "touchy" as manual hand tracking. I am pretty impressed with it's functions and clarity (for the moment). I do intend to upgrade at a later time to a 8'-10" dob when finances allow, but for all my telescope has to offer, I feel it could be "tweaked" a little to get clearer visions or make objects focus better. Jupiter looks good and I see color-saturns rings, all that, but how can I improve my telescope from it's origional factory set-up? I have looked at new mirrors, ect. but before investing money into all this new stuff I thought I would ask someone who knows more than I do about the subject. Any suggestions on how to improve my current setup would be very helpfull and appreciated. If possible I can be mailed direct at brucem101@hotmail.com. Thanks again for any advice

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