Question about Bushnell NorthStar Goto 100mm 788840 Maksutov-Cassegrain Compact Telescopes

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New Telescope I returned my Bushnell 100mm maksotuv was a bad peice. Now i'm deciding for a better one, one that has the same features like the GO To program that actually works and a sharp focus and tracking technology. I hope there is a telescope like that under $600. Any suggestions? Any help appreciated.

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Re: New Telescope

Meade and Celestron both make small goto scopes--

However can I persuade you to buy a nice PUSHTO Dobsonian like this one--

Posted on May 15, 2009

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How much is the Bushnell Banner Astro 280 worth?

I would not buy a Bushnell or Tasco brand telescope regardless of the price. You can do much better than these "toy" telescopes.

Check out this web site:

Nov 26, 2010 | Bushnell Deep Space 78-9512 (120 x 60mm)...

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Something inside the telescope broke. adjustment knobs are broken

Another "happy" Bushnell scope buyer. Never by a Tasco or Bushnell telescope. These are considered "toy" telescopes and are usually NOT suitable for Astronomy.

Read my tips on my profile page, or return the telescope to where you bought it.

Aug 28, 2010 | Bushnell Voyager 78-9565 (120 x 60mm)...

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The hand held unit lights up when turned on, and the telescope "homes" but the LED does not show anything. The voice speaks "Bushnell Northstar" but very quietly. The telescope can be moved by the bottom 4...

Can you reverse the cable end to the hand controller-- a bad cable can cause this. Also low power supply, depleted batteries can also cause this.

Return the hand controller for replacement if batteries and or a new cable do not fix this.

Dec 24, 2009 | Bushnell NorthStar 78-8846 (675 x 114mm)...

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Will it work without the eye peice and Diagonal

It will work without the diagonal (maybe) if you have enough focus range BUT it must have an eyepiece. Measure the hole. It's eithe .965 or 1.25 inch-- you can buy eyepieces at many online retailers. Here is one:

Oct 20, 2009 | Bushnell Deep Space 78-9512 (120 x 60mm)...

1 Answer


Here are the Bushnell manuals:

Look down the page for your telescope.

Aug 10, 2009 | Bushnell Telescopes

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Do not buy either telescope-- both are junk.

Instead buy one of these --

Apr 18, 2009 | Bushnell Deep Space 78-9512 (120 x 60mm)...

1 Answer

Not seeing a larger, more detailed image w/ Bushnell 78-8850.

Currently the rings of Saturn are nearly edge on so you won't see any details in them. Shortly the rings will appear edge on and the ring will disappear completely for a few months. Gradually, they will return and angle more towards Earth at which time you will be able to see some of the ring details.

There are many factors that can reduce your ability to see planetary detail. I had my Celestron 200mm out the other night looking at Saturn but saw no details because the atmosphere was too unstable. There are also limits to what a telescope can realistically view.

There is a general rule of thumb that states you can expect to view 50x per inch of aperture. Your telescope has roughly 5" of aperture. 5 times 50 equals a maximum of 250x. However, this is a guideline. On bad nights like I had you'll never reach that 250x since objects will appear blurry or unstable. On good nights, you can exceed this.

You can calculate your telescope power by dividing your telescope focal length by the focal length of the eyepiece ( that 4,9,20mm number).

An excellent object to look at when it comes back in view is Jupiter. It's always interesting and you can see four of it's moons.

Good luck and clear skies.


Mar 30, 2009 | Bushnell North Star 78-8850 Telescope

2 Answers

Bushnell voyager AN-78-9565

Not worth repairing-- a new focuser for your telescope would cost as much or more than the telescope-- unless you can find a discarded telescope of the same model..... for parts.

Jan 12, 2008 | Bushnell Voyager 78-9565 (120 x 60mm)...

1 Answer

Replace Eyepiece on Saturn F-900 Model 60EQ

You need an eyepiece This scope uses .965in eyepieces. you can find them on Ebay. Maximum magnification is 100x NOT 420x. These scopes have inferior optics and terrible mounts. Don't spend much on this scope. Buy a 20mm (35x magnification) or a 15mm (45x magnification) on Ebay If you are interested in astronomy, you need to spend some money on a good scope. Check out Orion for a great tabletop dob for $100

Oct 25, 2007 | Bushnell Deep Space 78-9512 (120 x 60mm)...

2 Answers

GO TO northsar program not working.

actually i find out from bushnell that i got a bad peice. Thanks for those who did try to help and if there r people who hav the same problem get a new one becauseit might jus be a bad peice. Thanx all

Aug 12, 2007 | Bushnell NorthStar Goto 100mm 788840...

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