Image of the day

Captured by
Mark Eby

M51 Whirlpool Galaxy

My Account

New to Astromart?

Register an account...

Need Help?

Polar Alignment Aids

Started by fugardi, 06/12/2006 06:38PM
Posted 06/12/2006 06:38PM Opening Post
Folks, I installed an east-west mechanical adjuster on my mount this weekend which was sitting in my miscellaneous scope box since 1996, not realizing what it was. Unfortuneately I had to remove the scope to install it. At least now the base is exactly level! The knobs tweak the base left or right as needed in very small increments. I haven't actually tried polar aligning yet, but last night Jupiter stayed in my webcam field of view with a 2.5x barlow for close to 20min so I think it should be close. The only down side to good polar alignment is now my dust motes become part of the image, where before, the planet was always moving and they always seemed to average out. I guess it's time to learn flat fields...


Attached Image:

fugardi's attachment for post 31996
Posted 06/12/2006 06:42PM | Edited 06/12/2006 07:46PM #1
Also, I found some nice software called astrosnap pro which puts a reticle on the computer screen to help do the polar aligning with a webcam. Since a decent illuminated eyepiece costs $170 (which I don't have), this seems like a reasonable way to go. In the registered version, there's even an automatic polar aligner. Has anyone tried this and is a webcam useful here? I know the field of view is quite small.


Attached Image:

fugardi's attachment for post 104482