Guide :Optics : NorthStar Goto 100mm 788840 Maksutov-Cassegrain Compact...

Computer not accurate

Last night when i was looking through my telescope it didn't "go to" the correct planet star or galaxy. When the moon was clearly out in the sky,and when i told it to go to the moon it said that the moon was below the horizon at this time. Why is it so unaccurate when i alighned earth correctly? Is there a way i cud correct this or reset it?

Research, Knowledge and Information :


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Suggested Questions And Answer :


Computer control and pointing with NorthStar Goto & Autostar


Your reseller is correct. The wire (Meade cable #505) goes from an RS232 serial port on PC to a 4pin RJ plug. This plugs into the 2nd socket on the bottom of an Autostar 497 handset, the other socket being used for the curly lead to the telescope. So it goes PC to Autostar to telescope. A common error is to try plugging the serial wire into an "AUX" ort on the telescope control panel - same connector. Not only does this not work, it can cause a lot of damage. Wired like this you can control the scope from Meade's Autostar Suite (or many other planetarium softwares). You can also update the Autostar software to the latest 2009 version. What else can go wrong? Well, many people want to control from a laptop, and modern ones don't have RS232 serial ports. Then you need a USB-to-serial convertor dongle, which effectively add a serial port to a laptop. But they often give it a very high port number (eg COM17) that the planetarium software does not find. Use Control Panel to reset the USB-serial-port to COM 1, 2, 3 or 4 and all should be well. But it can be a right fiddle!
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Need to clear bushnell northstars menory - Bushnell NorthStar Goto 100mm 788840 Maksutov-Cassegrain Compact Telescopes


Bushnell has never given instructions on how to do this. Try calling their service center here:http://www.opticsplanet.net/bushnell-warranty.html
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Upside down sight - Bushnell NorthStar Goto 100mm 788840 Maksutov-Cassegrain Compact Telescopes


No, you need an erecting lens and you can buy a variety of them to flip it right side up. This type of lens is used in only terrestrial telescopes and just to let you know, all astronomical telescopes show upside down images.
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Computer not accurate


Looking through the manual (link follows) please check that you set the time in 24 hour clock with timezone correctly. Also the date & of course location. I see no reset function in the manual but I guess leaving the batteries out for a while will reset it. Manual link: http://www.bushnell.com/customer_service/manuals/telescopes/78-8876_1LIM.pdf Also although it says you do not need to know where the stars are you're aligning to it's good to have some idea that you're actually aligning with "Mizar" or whatever. You can find maps of the night sky where you are on this link: http://www.wunderground.com/sky/index.asp Finally check if there is a local astronomy group that you can join, they are always ready to encourage & help people.
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Viewing we cannot view the planets or stars. the moon comes in great, but anything else looks identical which is a white circle with a black center and 3 black lines goinging through it in the shape of a peace sign, help please, I have contacted the 800 number for the product, they have no idea. my telescope is not on your list. it is northstar goto model 78-8831 76mm reflector.


Take it back where you got it for replacement
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New Telescope I returned my Bushnell 100mm maksotuv cassagrain...it 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.


Meade and Celestron both make small goto scopes--http://www.meade.com/etx_premier/index.htmlhttp://www.universetoday.com/guide-to-space/telescopes/celestron-se/However can I persuade you to buy a nice PUSHTO Dobsonian like this one--http://www.telescope.com/control/product/~category_id=dobsonians/~pcategory=telescopes/~product_id=27183
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I was just given a North Star goto telescope that was used. I do have the instruction manual but it does not show how to put the eyepices in. Bill McClung


Billmcclung: Bill, the Maks, use a diagonal to view the stars and the eyepieces go inside the diagonal.
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We purchased a 78-5880 North Star for our son for Christmas. I have skimmed the manual, but the family wants to dive in and begin using. They are wanting to take it back because they have been unable to see anything through it. Additionally, the hand held computer is way too dim to read. Is there a DVD manual or can you offer some tips on how to begin? psycdocdavel


All of Bushnells manuals are on this web site:http://www.opticsplanet.net/bushnell-warranty.htmlUsually there is a setting in the hand controller to adjust brightness. Make sure the batteries are FRESH and new. Put the eyepiece with the largest number written on it into the diagonal. DO NOT use the 2x barlow if you have one.Read my tips on GOTO scopes on my profile page.
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GO TO northsar program not working.


You haven't mentioned aligning the system, have you done that? (instructions in the manual)
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Display is very hard to read the text. bushnell says there's nothing they can do. I can't use it. barely read it in the light, can't read it in the dark.


Contact Bushnell and ask for a replacement hand controller. Your batteries are brand new CORRECT?
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