NexStar Resource Site
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Home | NexStar User's Guide | NexStar Observer List | Downloads | PC Control
Odds and Ends | Firmware Versions | Equip Reviews | Alignment Guides  | Manuals | Links
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Welcome to the NexStar Resource Site -
THE Internet Resource for All Models
of NexStar, CPC, LCM, CGE, CGE Pro, CGEM and AS-GT Telescopes!

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The NexStar User's Guide
is the first (and only) all-NexStar book in print.  Visit the link above to view the contents, excerpts from the book, updated information and links to the resources discussed in the book.

Thinking of getting someone (or yourself) into astronomy?  A NexStar SE or SLT scope and The NexStar User's Guide are the perfect solution.  You get a great beginner's scope and a book, coupled with this site, that will help you learn both the scope and amateur astronomy.


NexStar Observer List (NSOL)
is a free PC control program for all models of NexStar, StarSeeker, CPC, LCM, CGE, CGE Pro, CGEM, Advanced Series GoTo (AS-GT) and Ultima 2000 scopes, as well as Tasco StarGuide scopes.  Version 2.6.4 was released on 4 July 2004.  Click here to read more and download the latest version.

Pocket NexStar Observer List (PNSOL)
is a free Pocket PC program for all current NexStar, CPC, LCM, CGE, CGE Pro, CGEM and AS-GT telescopes.  Version 1 was released on 4 July 2004.  Click here for more details.

The NexStar, CPC, LCM, CGE, CGE Pro, CGEM and AS-GT telescopes are computerized "GoTo" scopes from Celestron.  Most of the models feature a computer hand control as standard equipment allowing the scope to automatically "GoTo" objects in its generous database.   They track objects automatically as well.  Basic information about these scopes is available at  the Celestron web site, but this site is a collection of information not found anywhere else.  Another great source of information is Yahoo Groups, (Links above).  There are discussion groups for all NexStar, CPC, CGE, CGE Pro, CGEM and AS-GT series telescopes.  The folks on these groups are quite friendly and don't mind questions from someone trying to make up their mind about a purchase or just looking for information about their telescope.

Clear Skies!
Mike Swanson

Click Jupiter to see my modest attempts at astrophotography:


This web site recognized by Griffith Observatory as the recipient of their Star Award for the week of 25 Apr - 1 May 2004.  Star Awards recognize "excellence in web sites that promote public awareness of astronomy...making the sky more accessible."

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What's New?

  • PC Control updated 10 Feb 2016 - added Celestron SkyPortal to the list of programs compatible with NexStar scopes
  • Manuals updated 23 Feb 2014 - posted Celestron's addendum for the NexStar+ hand control
  • Firmware Versions updated 26 Feb 2013 - Celestron has released updated firmware for the NexStar+ hand control
  • Links updated 19 Nov 2012 - Added a link about astrophotography suggested by youth group member, Katey!
  • Firmware Versions updated 6 May 2012 - Celestron has released updated firmware for the version 4 and NexStar+ hand controls
  • Firmware Versions updated 5 May 2012 - posted a "how to" article for updating the firmware on the NexStar+ hand control
  • PC Control updated 26 Feb 2012 - added SkySafari to the list of programs compatible with NexStar scopes
  • Odds and Ends updated 25 Feb 2012 - updated page describing hand control compatibility with Celestron computerized mounts
  • Odds and Ends updated 19 Feb 2012 - Celestron has released a new hand control called NexStar+
  • Firmware Versions updated 19 Feb 2012 - hand control version 4.20 on the alt-az mounts (GPS, CPC, SE, 5i/8i, SLT, LCM) has a bug related to RS-232 control
  • Firmware Versions updated 21 Oct 2011 - Celestron has released new hand control firmware for all models with an upgradeable hand control (with the exception of the NexStar GT) and new motor control firmware for the AS-GT, SLT, 4/5 SE, CGE, CGEM/CGEM DX and CGE Pro.
  • Firmware Versions updated 1 May 2011 - added information about non-English hand controls
  • Odds and Ends updated 26 Mar 2011 - added an article by Michael Wheeler about replacing defective bearings in NexStar 5i/8i altitude axis
  • Odds and Ends updated 25 Mar 2011 - added an article by Tom Hayko about repairing the NexStar GPS altitude axis
  • Celestron has debuted an on-line spare parts store for customers in the USA - click here for details - 4 Sep 2010

This site has been visited more than 1.9 million times since its introduction in November 2000

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Michael Swanson
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