Question about Orion SkyView Pro 100mm ED EQ Apo Refractor Telescope

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Ra ascenntion lock release does not release

The ascention release lock when release does not release the assescion axis to glide

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Contact Orion customer service:

http://www.telescope.com/control/main/

Posted on Oct 15, 2009

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Can you describe how to use RA and DEC to find objects. I can find the planets ect....


Once the scope is polar aligned move it to a named star that you can identify. Look up the RA and DEC for that NAMED star in any planetarium phone APP or a laptop running any planetarium software like the free software available at www.stellarium.org

Adjust the circles to MATCH the RA and DEC in the planetarium software, and lock them down.

Now you can use them to find other objects of known RA and DEC.

Apr 21, 2011 | Celestron PowerSeeker 127 EQ 21049 (750 x...

Tip

You Just Bought an EQUATORIAL Telescope Mount!


Even though we warned you not to do this, you bought one anyway! Beginners should never buy an EQ telescope mount as their first telescope. It's too late now; so I guess we will need to teach you how to use it!

Equatorial mounts move in a way that seems not to very intuitive. Unlike the easy Alt AZ mount which moves up and down and left and right, the EQ mounted telescope seems to move in TWO dissimilar directions at the same time.

Additionally you must first polar align the mount on the North star Polaris before you can use it. SEE! we told you not to buy it!

Here are the steps to roughly polar align the telescope so you can use it. If it is motorized the single Right Ascension motor will keep the sky object inside the eyepiece for long periods of time. If you do not have a Right Ascension motor, the slow motion RA knob can be slowly turned to keep the sky object centered in the eyepiece.

Begin by leveling the mount and tripod. Move the entire mount and tripod so it is pointing roughly to North, as close as possible using the steps below or a compass. Don't forget to adjust for your magnetic deviation. My location's compass reading is about 5 degrees away from true North. This is called magnetic deviation. You can find your location's deviation on the internet. Then proceed with the steps below.

First, adjust the Declination to the latitude for your observing site. Declination is the angle that the scope is pointing UP, and it's the same as your latitude. For example Dallas, Texas is about 32 degrees North latitude, adjust the scope so the small indicator reads 32 degrees. By the way, the North star in Dallas, TX is about 32 degrees above the horizon. Your latitude matches the elevation of Polaris (the North star) above the horizon.

Second, either look through the polar alignment scope buried in the axis of the telescope mount, or look along side the axis, and get the star Polaris lined up in the cross-hair of the polar alignment scope, or as best you can by looking along the side of the mount axis, or lining it up using your compass.. This will put the scope to within about 3/4 of 1 degree of the TRUE North celestial sphere. This is good enough for VISUAL observation, but NOT good enough to do astro-photography..

Adjust the DECLINATION up or down, and move the entire mount left or right until you can see Polaris as indicated above, or it is lined up as close as possible.

Now you are roughly polar aligned. Now you can move the tube around by loosening the Right Ascension lock, and or the Declination lock until your sky object appears in the small finder scope mounted on top of the main telescope tube.(DO NOT MOVE THE MOUNT, and the counter weight should never be higher than the telescope tube) Lock down the scope in both axis and use the fine adjustment RA and DEC knobs to center the target. Again, DO NOT move the mount or tripod. The mount should still be pointing at Polaris.

This web site illustrates this procedure:
http://www.astronomy.net/articles/4/polaralign.html

also this web site

http://www.telescopes.com/telescopes/polaralignmentarticle.cfm

You should be able to keep an object within the field of view of the eyepiece by slowing turning the Right Ascension slow motion control knob-------- IF you are actually accurately polar aligned. Small adjustments may also be needed with the DEC slow motion knob since you are not exactly polar aligned using this rough alignment technique.

However it can be used successfully for visual observation. Your scope will now track the motion of the stars as they move across the sky.

Hope that helps you!

Clear Skies!
TelescopeMan

www.telescopeman.tumblr.com

on Dec 29, 2009 | Optics

1 Answer

Where is the declination clutch located?


RA moves the polar axis--- and DEC moves the scope from side to side.

There are two knobs that turn these two axis.

See this:
http://www.themcdonalds.net/richard/index.php?title=Polar_Alignment_of_your_Equatorial_Mount

Dec 30, 2010 | Celestron AstroMaster 114 AZ (50 x 114mm)...

1 Answer

My telescope was purchased in 2004. It is rarely used, but has been stored in room conditions. Problem: The Fine Adjustment rod will not activate the Right Ascenion gear. The rod on the Declination...


The RA must be in the center of the screw to give you adjustment in both directions.

You can also contact Bushnell customer service here:
http://www.bushnell.com/products/gps/product-support/warranty-service/

Dec 24, 2010 | Bushnell Voyager 78-9565 (120 x 60mm)...

2 Answers

Polar alignment with cg5 mount in the tropics


Wait what? You just have to remove the front bracket for the alt screw and you can go lower than 30 degrees.

Feb 21, 2010 | Celestron CG-5 Mount Telescope

1 Answer

The white plastic piece that stops the RA from moving, when the RA locking piece is set. I'm looking for for one


Celestron is very good about selling replacement parts. Call them. Here is the Customer Service Department:
http://www.celestron.com/c3/page.php?PageID=37

Dec 29, 2009 | Celestron Optics

1 Answer

I have a problem whith the RA axis. It runs 1/3 of


Don't think you will find a manual anywhere on the internet.

Try using Google but I don't think any exist.

A grinding noise indicates the gears are broken or not engaging properly. Sorry.

Oct 14, 2009 | Takahashi FSQ-106/EM-200 (229 x 106mm)...

1 Answer

Can't release RA axis manually


I had one come in like this. AS you say the RA axis should be free to rotate in the RA housing when the clutch lever is released. The cylinder that the worm is machined on is binding on the axle. This doesn't overly effect normal tracking, but makes gross adjustments impossible. The only solution is to tear the mount down and finish the parts to eliminate the interference. Google astronomyboy for the how to. I have to warn you that I had to heat the cylinder and axle in the oven at 250 for 30 minutes before they would separate. don't use the wife's good oven mits!! When I finish these parts I use Soft Scrub (w/o bleach) as a grinding compound. It's basically bicarb in a jell. HTH, Geo.

Nov 01, 2008 | Celestron CG-5 Mount Telescope

1 Answer

GOTO ERRORS MEADE LX200 10" CLASSIC


Most problems tend to be mechanical. Have you 'trained' the drive and set the backlash values? Those 2 can have dramatic effects on pointing accuracy. Also, if the optical tube is not in alignment with the mount, then nothing will work correctly. To check that, have the telescope in Alt-Az configuration, inside the house, loosen the RA lock, and shine a laser pointer on the corrector plate. as the telescope is rotated about the RA, the reflected spot should be steady. Adjust the DEC to minimize the diameter of the circle that is drawn. What is left, is the out-of-true on the DEC axis. That can be adjusted with the tube cradle alignment bolts.

Oct 17, 2008 | Meade Optics

1 Answer

Right ascesion slow motion control knob loose, does not work


The RA knob has a setscrew that fixes it to the shaft. Just need to find the correct size and tighten.

Jul 06, 2008 | Meade LX200GPS Telescope

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