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Celestron NexStar 8i (600 x 203mm) Telescope Questions & Answers
Celestron NexStar 8SE shows No
Reset the hand controller and reload the firmware. You will need a special cable available from Celestron to load the firmware. The software is available for free on the Celestron web site.
http://www.celestron.com/c3/home.php
www.telescopeman.org
www.telescopeman.info
www.telescopeman.us
8/5/2011 9:04:17 AM •
Celestron...
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Answered
on Aug 05, 2011
I live (and hence observe) in the southern
Read this:
http://books.google.com/books?id=V3tyCXsCCkMC&pg=PA80&lpg=PA80&dq=align+nexstar+in+southern+hemisphere&source=bl&ots=KIgbgUDdmW&sig=-I26nKahu0-JbPfnkZUrXuW7oX4&hl=en&ei=7gMmTYWBHsaqlAfe6pXEAQ&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBMQ6AEwAA#v=onepage&q=align%20nexstar%20in%20southern%20hemisphere&f=false
and this
http://www.nexstarsite.com/Firmware/GPSFirmware.htm
1/7/2011 12:28:44 AM •
Celestron...
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Answered
on Jan 07, 2011
HI, Just purchased a nextstar
Check the focus knob and make sure the small "set-screw" is tight and the knob is just not spinning around on the shaft.
DID you turn the knob enough to focus? Sometimes it may take 10 - 20 full turns.
Finally the focuser is attached to a "rod" inside the tube that moves the mirror back and forth to focus the scope. It could have come loose from the rod?
Instructions for disassembly are here:
http://www.celestron.com/c3/support3/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=2220
and here:
http://www.sciencecenter.net/hutech/misc/focuslk/index.htm this just shows how it works.
10/25/2010 9:29:39 PM •
Celestron...
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Answered
on Oct 25, 2010
I have a bushnell Northstar telescope #788831am.
I don't believe they have an "update" web site. However they do have a customer service web site here:
http://www.opticsplanet.net/bushnell-warranty.html
According to the manual PAGE 14 choose the closest city.
See this: http://www.bushnell.com/manuals/telescopes/78-8831_Northstar_GOTORV_4L.pdf
Apparently once you center the two alignment stars it does not matter. The closest city gets you near the alignment stars if Time, Date, etc etc are set properly.
There does appear to be a latitude longitude selection in the menu-- see the manual above. See if you can also set the exact Lat-Long in the hand controller.
6/2/2010 10:56:11 PM •
Celestron...
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Answered
on Jun 02, 2010
Front glass fog from the inside.
First buy a dew shield, this will help prevent dew for some period of time. You may also need to buy a dew heater for the scope. Depends on where you live.
DO NOT leave the scope pointed up toward the sky for long periods of time.
Bring the scope outside at least 1 hour before you are going to use it. This lets the optics reach ambient temperature which will give you better views.
Here is a retailer that sells a dew shield and dew heaters: Bring the scope inside for a day or two and see if the dew "inside" the tube vanishes all by itself, before you decide to open it up. The corrector lens must be reinstalled in the EXACT position it was in before you removed it.
http://www.optcorp.com/
4/9/2010 2:08:25 PM •
Celestron...
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Answered
on Apr 09, 2010
Set up
The finder scope may not be aligned properly with the mn telescope. In the daytime, try setting the main scope on a distant object such as a steeple or chimney in the distance then align the finder scope to point to the same object. Then at night, look at the some bright star or planet and fine-tune the finder scope's adjustment screws so the images are aligned between the two scopes.
6/4/2009 5:51:00 PM •
Celestron...
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Answered
on Jun 04, 2009
Total loss of power from battery compartment
There are a couple of things you can try to get it working again. First double check the battery orientation so that they are in the right direction then pry out the battery terminal tabs slightly to get better contact.
If it still doesn't work, try connecting to an external battery or AC adapter if you have one. If it works that would eliminate the power switch as a problem and isolate it to a battery compartment problem.
I own a couple of the Nexstar telescopes and I only use the internal batteries for quick testing. I always go with either an external battery or power adapter when I'm using it outside for observing. It gives you more consistent and reliable power than using the small batteries. The external battery I use has a ******** it, so I droop it across my tripod. The added weight creates better stability.
I hope this helps.
Good luck and clear skies!
-jodair
4/10/2009 8:55:15 PM •
Celestron...
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Answered
on Apr 10, 2009
Need info about my used celestron
Go to celestron.com or telescopes.com they will tell you what you have and how to buy what you need. 8" will let you see some really awesome objects
3/5/2009 3:00:12 AM •
Celestron...
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Answered
on Mar 05, 2009
2-star alignment
I also have an 8i, but decided not to upgrade the controls yet. I've had my scope for about four years. I have experienced the same problem and am not sure what what causes it. Some nights, the scope tracks alignment all night, other times it does not. When the later occurs, the only thing that helps is to repeat the alignment picking new targets. One night, I had to repeat alignment 3-4 times. Also, I highly recommend a book by Michael Swanson, "The Nexstar User's Guide". It's an easy read, very specific and keeps the novice in mind. It should be included with every Nexstar sold. Go online to:
http://www.Nexstarsite.com. Hope this helps. John
11/21/2008 4:13:11 AM •
Celestron...
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Answered
on Nov 21, 2008
Focus knob turns but nothing moves
The Celestron manual for this scope has nothing to say, but on the underside of the focuser assembly, between the 2 focus knobs, you may see 2 screws.They might be thumbscrews or some other screwhead type. One is the adjustment for the focuser internal clearance, or looseness, and the other is a focus travel lock.If present, try backing both off 1/2 turn from tightness, and then experiment to see which is which. The focus lock will have no effect until tight, when the focuser will cease moving, as is now. The other screw will gradually remove looseness and rattle from the focuser until it just moves smoothly, with no back and forth loose feeling at the knob.If neither of these screws is visible you will have to take it to a binocular and telescope shop, where they should not charge much.
What is the weight of the celestron next star se 8
It is impossible to assess the weight (or more correctly Mass of a star, as weight is a perceived function of Earth's gravity) without knowing the chemical make up of the star. That is why astronomers use the star's measured albedo to qualify and quantify them.
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