SharpCap polar alignment help

[assouptro]

I am trying to powerline using SharpCap I just have a simple question

Should I have the mount switched on and tracking in the process?

Speedy help would be wonderful as I am in the process as I speak

Many thanks

 Many thanks

Bryan 

[Craney]

Powerline(?) = Polar Align

I have my mount switched off, and just rotate the RA axis when prompted.

[assouptro]

2 minutes ago, Craney said:

Powerline(?) = Polar Align

I have my mount switched off, and just rotate the RA axis when prompted.

Power line!! 

😂 

I was dictating to my phone!! 

Thanks a bunch!!

[newbie alert]

I have mine parked but not tracking..

[david_taurus83]

I initate tracking before starting the polar align routine, slew the mount via its motors and then adjust, then slew back to home position to check the adjustments.

[ippiu]

On 03/07/2019 at 11:45, david_taurus83 said:

then slew back to home position to check the adjustments.

And if you slew 90° the opposite way, your PA should be almost for sure different. I have a difference roughly of about 2' when rotating from 90 ° east to 90° west.

What are you doing to mitigate this little error?

It's cone error, i think.

Now i'm using IPolar: it is mounted inside the RA axis mount and it should give more uniform reading while rotating the mount from east to west....

Edited July 4, 2019 by ippiu

[david_taurus83]

36 minutes ago, ippiu said:

And if you slew 90° the opposite way, your PA should be almost for sure different. I have a difference roughly of about 2' when rotating from 90 ° east to 90° west.

What are you doing to mitigate this little error?

It's cone error, i think.

Now i'm using IPolar: it is mounted inside the RA axis mount and it should give more uniform reading while rotating the mount from east to west....

I've not tried that. Its accurate enough as it is. Getting it perfect makes no difference to my Skywatcher mount as my guiding is limited by the mechanics of the mount. My guiding RMS is currently around 0.6"/0.7" but the grouping of the peak errors is generally contained within the 1" circle. My main imaging scale is 2.33" per pixel so it works for me.