Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Mounts

Pages: 1
jacobmarchio
sage


Reged: 08/30/12

Loc: Alabama
Orion AstroView P.A. Reticle Alignment Trouble
      #5512962 - 11/10/12 10:49 AM Attachment (15 downloads)

Hi all,
I have an Orion AstroView mount, and I am having trouble aligning the polar alignment scope's reticle. It is a PAIN to align this thing, fiddling with tiny allen wrenches and tiny screws. Anyway, so I point it at a convenient telephone pole (during the day) as in picture below:


Post Extras: Print Post   Remind Me!   Notify Moderator  
jacobmarchio
sage


Reged: 08/30/12

Loc: Alabama
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: jacobmarchio]
      #5512963 - 11/10/12 10:50 AM Attachment (15 downloads)

Then I turn the mount in R.A. 180°, to look like this:

Post Extras: Print Post   Remind Me!   Notify Moderator  
jacobmarchio
sage


Reged: 08/30/12

Loc: Alabama
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: jacobmarchio]
      #5512964 - 11/10/12 10:50 AM Attachment (14 downloads)

So I use the screws to move the reticle back, like such:

Post Extras: Print Post   Remind Me!   Notify Moderator  
jacobmarchio
sage


Reged: 08/30/12

Loc: Alabama
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: jacobmarchio]
      #5512965 - 11/10/12 10:51 AM Attachment (14 downloads)

I then turn it back upright (180° R.A.), and it looks like this:

Post Extras: Print Post   Remind Me!   Notify Moderator  
jacobmarchio
sage


Reged: 08/30/12

Loc: Alabama
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: jacobmarchio]
      #5512967 - 11/10/12 10:51 AM

And it just keeps going round and round like that. Why? Solutions? thanks in advance

Post Extras: Print Post   Remind Me!   Notify Moderator  
Cliff Hipsher
Pooh-Bah
***

Reged: 12/31/08

Loc: North Chesterfield, VA
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: jacobmarchio]
      #5513242 - 11/10/12 02:09 PM

You need to "sneak up" on this alignment. You should be taking out HALF of the offset, not all of it, and then turn the mount back to the other side, take out half of the error, go to the other side, take out half the error and so forth....

Post Extras: Print Post   Remind Me!   Notify Moderator  
Phil Wheeler
Carpal Tunnel


Reged: 12/31/05

Loc: 3 miles WNW of Celestron
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: Cliff Hipsher]
      #5513458 - 11/10/12 05:02 PM

Not sure, but your pole looks pretty near to your scope. I think you are supposed to use something at least a mile away (parallax issue). How far away is your pole??

Post Extras: Print Post   Remind Me!   Notify Moderator  
ourobouros2k2
sage


Reged: 11/10/11

Loc: okc area, oklahoma
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: Phil Wheeler]
      #5513521 - 11/10/12 06:30 PM

I never had any luck with distant objects, and I don't like to try this at night. I chose a picture frame on a wall 20' distant. When you align the optical and mechanical axis, you will know it. Cliff is right, adjust far less than you think that you need to, do it in little steps. Before you know it, you will have both axis aligned.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Roy McCoy
Pooh-Bah
*****

Reged: 10/13/05

Loc: Glendale, AZ
Re: Orion AstroView P.A. Reticle Alignment Trouble new [Re: ourobouros2k2]
      #5513781 - 11/10/12 10:40 PM

I agree with Cliff, Phil, and Andrew.

I would add that the first two pictures show that your alignments were actually making the axis grow farther apart.

Take notice if you are getting closer or farther apart.

If you are going farther apart then you are going in the wrong direction with your adjustments and do the opposite.

Best Regards,

Roy


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Extra information
20 registered and 35 anonymous users are browsing this forum.

Moderator:  Dave M, richard7, bilgebay 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 558

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics