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Telescope Basics (6)

Telescopes - Beginner's Guide (20)

What is a finderscope?

What is a star diagonal?

What does magnitude mean?

What is seeing? What is transparency of the atmosphere?

Telescope Types (5)

Telescope Optical Terms (17)

Newtonian Reflectors

What are diffraction-limited optics?

What is the focal ratio? How is it related to the f-stop?

Telescope Mechanical Topics (8)

Telescope Polar Alignment (5)

What is a clock drive? What is a GOTO mount?

Why do I need polar alignment?

Rough polar alignment

Telescope FAQs (68)

Astrophotography - Imaging (11)

How do I align my Schmidt-Cassegrain telescope’s (SCT’s) corrector plate and secondary?

What is backlash and how can I adjust it?

How do I connect a single-lens reflex (SLR) camera to my telescope?

I’m using a focal reducer and can’t seem to focus my SLR camera on my Schmidt-Cassegrain telescope (SCT). What am I doing wrong?

SkyScout FAQs (49)

FirstScope Dobsonian Reflector (3)

What is the SD card slot for?

How does SkyScout work?

My FirstScope (#21024) is showing everything upside down! What’s wrong?

Is the FirstScope mirror parabolic? What eyepieces will work best with it?

PowerSeeker FAQs (31)

AstroMaster FAQs (30)

Should I use an ALT-AZ or equatorial mount?

Balancing your PowerSeeker telescope

Should I use an ALT-AZ or equatorial mount?

Balancing your AstroMaster telescope

Omni XLT FAQs (30)

NexStar SLT FAQs (46)

How do I get the most accurate polar alignment?

Terrestrial use of your telescope

What is cordwrap and how does it work for my SLT?

What do I need to know about my NexStar SLT and batteries?

Nexstar SE FAQ's (42)

I’m using rechargeable batteries with my Celestron GOTO mount and the mount won’t power up even though the batteries are new and fully charged. What’s the problem?

How do I do a GOTO or alignment on the sun when it does not appear in the SOLAR SYSTEM list?

Can I autoguide with the NexStar SE series mounts?

Is the dovetail bracket clamp on the fork arm of the NexStar SE mounts all metal?

CPC Series FAQs (33)

Advanced Series GT FAQs (43)

How do I power my CPC scope?

How do I get a new hand control for my CPC series telescope?

How do I get a flashable hand control for my Advanced GT series mount?

My time zone isn’t in SETUP TIME-SITE for my Advanced GT. What do I do?

CGEM Series FAQs (9)

CGE Pro FAQs (8)

My CGEM mount won’t let the front latitude screw lock the mount. What’s wrong – is the mount unstable?

I downloaded the PECTool software from the Celestron website to my Windows Vista 32 PC. When I tried to install it, ‘ERROR: NexRemote not allowed to run on WinNTX’ was displayed. How do I get it to run?

I downloaded the PECTool software from the Celestron website to my Windows Vista 32 PC. When I tried to install it, ‘ERROR: NexRemote not allowed to run on WinNTX’ was displayed. How do I get it to run?

Does the stated payload weight of my Celestron mount include the counterweights?

EdgeHD FAQs (10)

CGE German Equatorial Mount (35)

Aplanatic optics

Will I be able to use my standard Celestron f/6.3 reducer/corrector with an EdgeHD?

My CGE mount will not move in the declination axis when attached to my SBIG ST-7 autoguider.

How do I get a flashable hand control for my CGE mount?

Ambassador Brass Refracting Telescope (1)

NexStar GPS FAQs (26)

Will the brass of my Ambassador telescope need special care?

My NexStar GPS takes a long time to link and date-time is wrong. Do I have a dead internal battery?

How do I replace the NexStar GPS internal battery?

NexStar GT and GTL FAQs (41)

StarHopper FAQs (1)

I use a compass to align my scope north, but my telescope will still not place an alignment star within the finderscope's field of view. Why not?

Why does my scope move well past the alignment stars when I attempt to use Auto-Align?

My Celestron StarHopper’s mirror cell has six screws. Which ones are collimation screws? Which ones are locking screws?

Binocular Basics (22)

Will the NexImage achieve focus with my Onyx 80EDF?

I am choosing a pair of binoculars. What factors should I consider?

What is the diameter (objective size) of a pair of binoculars?

Spotting Scopes (23)

Microscopes (21)

What kind of eyepieces can I use with my spotting scope?

What’s the difference between a regular scope and an ED scope?

How do I get replacement bulbs, extra eyepieces and objectives for my microscope?

What are the major types of optical microscopes?

LCD Microscope (3)

Handheld Digital & Optical Microscope (3)

Will my MAC recognize my LCD Microscope? Is it MAC compatible? Can I get my MAC to display images from my LCD Microscope?

Are the objectives for the LCD microscope DIN, JIS or RMS?

My Handheld Digital & Optical Microscope (#44306, HDOM) manual says I need to download a driver to use with my MAC. Where do I find the driver?

Is there any way to run Celestron’s Window-based drivers and software on Macs?

Handheld Digital Microscope (7)

Digital & Optical Microscope (4)

Handheld Digital Microscope Virus Warning

My MAC won’t recognize my Handheld Digital Microscope (HDM). Is it MAC compatible? Can I get my MAC to display images from my HDM?

My Digital & Optical Microscope (#44330) Arcsoft software key is missing. What do I do to get my program properly installed?

I’m using the Digital Optical Microscope 44330 with my laptop with built-in webcam. Everything installs okay, but my computer either can’t see the microscope or says a webcam is in use. What do I do?

Digital LCD & Camera Microscope Accessory (3)

NexRemote FAQs (32)

I can’t get my Digital LCD & Camera Microscope Accessory (#44430) to show an image. What’s wrong?

Is there any way to run Celestron’s Window-based drivers and software on Macs?

I just rebooted my computer and launched NexRemote. Now it can’t create a virtual port. What causes this?

Sometimes when I try to use the PC keyboard to control the scope with NexRemote, nothing happens. Why?

NexImage FAQs (8)

TheSky FAQs (3)

How does NexImage work?

What are the best targets for NexImage?

Why can't I retrieve a list of observable comets in TheSky?

Will TheSky program supplied with my Celestron scope run with the Vista operating system?

PowerTank FAQs (1)

VistaPix FAQs (11)

My Celestron PowerTank is taking longer to charge and to show the fully charged light. Why?

I get a message that the VistaPix drivers aren't Microsoft certified. What should I do?

What can I do if I’m having difficulty activating the VistaPix PhotoManager software?

How do I find out about my 2009 rebate for the NexStar SE telescope?

Celestron Repair/RMA Procedure

Telescopes and Astronomy on the Web (1)

Telescope-Astronomy Resources on the Web

Articles

I’m looking at my Celestron product and it has a serial number on it. Can you tell me the model, type and year it was made?

No, we cannot.Though many of the products we’ve made have serial numbers on th

Repair/RMA Procedure

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Main Categories

Telescope Basics (6)

Telescopes - Beginner's Guide (20)

Telescope Types (5)

Telescope Optical Terms (17)

Telescope Mechanical Topics (8)

Telescope Polar Alignment (5)

Telescope FAQs (68)

Astrophotography - Imaging (11)

SkyScout FAQs (49)

FirstScope Dobsonian Reflector (3)

PowerSeeker FAQs (31)

AstroMaster FAQs (30)

Omni XLT FAQs (30)

NexStar SLT FAQs (46)

Nexstar SE FAQ's (42)

CPC Series FAQs (33)

Advanced Series GT FAQs (43)

CGEM Series FAQs (9)

CGE Pro FAQs (8)

EdgeHD FAQs (10)

CGE German Equatorial Mount (35)

Ambassador Brass Refracting Telescope (1)

NexStar GPS FAQs (26)

NexStar GT and GTL FAQs (41)

StarHopper FAQs (1)

Binocular Basics (22)

Spotting Scopes (23)

Microscopes (21)

LCD Microscope (3)

Handheld Digital & Optical Microscope (3)

Handheld Digital Microscope (7)

Digital & Optical Microscope (4)

Digital LCD & Camera Microscope Accessory (3)

NexRemote FAQs (32)

NexImage FAQs (8)

TheSky FAQs (3)

PowerTank FAQs (1)

VistaPix FAQs (11)

Telescopes and Astronomy on the Web (1)

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