¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. C14EdgeHD
  2. Topics

illuminated reticle. polar alignment.

 

hello all, thank you for allowing me to join the group. I am having trouble polar aligning my c14" edge hd using the drift method.( i am in the southern hemisphere, so no polaris)? i am using a 9mm plossl? illuminated reticle eyepiece. Am i right in thinking that is far too much magnification given that the focal length of the ota. is 3910 divide that by 9mm ( reticle eyepiece ) equals a mag of? 434x. i guess that the very small FOV wont help either, i cant even find one star in my eyepiece. i used the same eyepiece to drift align with a meade 12" and it? worked very well. any suggestions would be MOST welcome. thank you so much. clear skies! peter.
 

¿ªÔÆÌåÓý

Hi Peter,
?
Allow me to inject a question, but I probably don't have an answer.? Alignment depends more on the mount than on the scope.? Each mount is different.? Since you are using a Celestron scope, are you also using a Celestron mount?? If so, they do have a built in polar alignment routine that doesn't rely or care about Polaris.? If the mount isn't Celestron, I'd check with the mount manufacture and get their recommendation.
?
Ray Stann


From: [email protected] [mailto:[email protected]] On Behalf Of Peter Betts
Sent: Wednesday, October 13, 2021 3:57 PM
To: [email protected]
Subject: [C14EdgeHD] illuminated reticle. polar alignment.

hello all, thank you for allowing me to join the group. I am having trouble polar aligning my c14" edge hd using the drift method.( i am in the southern hemisphere, so no polaris)? i am using a 9mm plossl? illuminated reticle eyepiece. Am i right in thinking that is far too much magnification given that the focal length of the ota. is 3910 divide that by 9mm ( reticle eyepiece ) equals a mag of? 434x. i guess that the very small FOV wont help either, i cant even find one star in my eyepiece. i used the same eyepiece to drift align with a meade 12" and it? worked very well. any suggestions would be MOST welcome. thank you so much. clear skies! peter.

 

The group might be able to help you more if you tell us what mount you are using.?

Fernando

 

Hi Peter,

Doing this visually is not easy, assuming your mount is capable of handling the C14, and as you stated finding stars is the problem, that suggests the eyepiece fl is too short for the high native FL of the C14. Try with a 25mm and see if you get some stars to work with.

good luck,
Paul
 

I can say with certainty a 25 mm EP may not be wide angle enough. ?On my 11¡± Edge 24mm is not wide enough to put Polaris when polar aligned. I¡¯d recommend 38mm to 42mm. Doesn¡¯t have to expensive.?

Hope this helps.?
 

What mount are you using? Get a 35 to 40 mm eyepiece.

Most mounts have a built in polar alignment program, the Celestron has the all star polar alignment which would work.? You can also use your guide cope and its camera to polar align.? I have the SVT 70 using the ASIZWO174MM to guide. This setup is sucured to the Telescope with cradle rings instead of guide rings, this prevents any flexure.? This setup with a program such as the ASIStudip or FireCapture will allow you to center stars with the crosshair feature for precise centering, which will closely natch the 14"

Joe Rome, Austin, Texas

On Wednesday, October 13, 2021, 07:05:11 PM CDT, Peter Betts <peterfergieb@...> wrote:


hello all, thank you for allowing me to join the group. I am having trouble polar aligning my c14" edge hd using the drift method.( i am in the southern hemisphere, so no polaris)? i am using a 9mm plossl? illuminated reticle eyepiece. Am i right in thinking that is far too much magnification given that the focal length of the ota. is 3910 divide that by 9mm ( reticle eyepiece ) equals a mag of? 434x. i guess that the very small FOV wont help either, i cant even find one star in my eyepiece. i used the same eyepiece to drift align with a meade 12" and it? worked very well. any suggestions would be MOST welcome. thank you so much. clear skies! peter.

1 - 6 of 6