Guide North or Guide South

[AlistairW]

Hello,

Could someone explain to me when you should guide North and when you should guide south. How do you decide when looking at a PHD2 graph?

Thanks

Alistair

 

 

 

[ollypenrice]

If it guides in the wrong direction reverse it...

Olly

[Davey-T]

Rotate the guide camera so when you slew north and south the guide stars go up and down the PHD screen to match

Dave

[alacant]

Hi. Answer to first question: If DEC backlash is out of control, polar align and then turn the mount azimuth and/or altitude adjusters say 1/2 turn. Run the ga and see which way the star dirfts. Set DEC to guide the opposite. HTH.

[michael8554]

Hi Alistair

As others have already said, it helps to visualise corrections if you mountf your guidecam so that north/south movement is up and down the screen.

I run my guidecam like this but "upside down", so that the USB socket is at the "bottom".

PHD2 doesn't care, it works out which way the camera is orientated from the Calibration run.

So if your Dec trendline is heading towards the "Guide North" message in the top right corner of the guide graph window, that means you need to guide north to correct the error.

Michael

[Owmuchonomy]

As Michael says just turn on the drift lines option in PHD 2 and that tells you which way your drift is so you can then choose which way to correct in the same screen.

[michael8554]

On 11/25/2017 at 23:56, michael8554 said:

So if your Dec trendline is heading towards the "Guide North" message in the top right corner of the guide graph window, that means you need to guide north to correct the error.

Well apologies, I wrote that from memory, but it's wrong !

If your Dec Trendline is heading towards the "Guide North" message, that means you have to guide SOUTH to bring the Trendline back toward the middle.

Michael