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PHD2 unable to calibrate (not enough movement)

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#1 raguramm

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Posted 19 March 2019 - 06:43 PM

Hey all, I've had a couple of nights now where my PHD2 guiding fails to calibrate because the star isn't moving enough on the RA axis. I've got my step size at 1200, which I thought would be enough, and I believe I've configured my settings correctly for my guidecam (QHY5L-ii mono) and guidescope (60mm Orion guidescope, 240mm f/4) with darks library. I don't think I'm calibrating on a hot pixel, since the star is moving a little as PHD2 pulses the mount, just (apparently) not enough.

 

I was calibrating on a star that's not very close to the celestial equator - could this be my issue? (Target is Bode's galaxy). If this is the case, do I have to swing my scope around and first calibrate on a random star close to the equator before returning to my target for guiding? Seems unwieldy.

 

I've attached my guide log in case anyone wants to take a look and help me out. 

 

Attached File  PHD2_GuideLog_2019-03-16_220002.txt   9.15KB   8 downloads



#2 Jim Waters

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Posted 19 March 2019 - 06:51 PM

You should post this here where the developers hand out.  Be sure to post all log files.

 

https://openphdguidi...g/getting-help/

https://groups.googl...pen-phd-guiding

 

Make sure you use the current Dev release.

https://openphdguidi...ment-snapshots/



#3 wrnchhead

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Posted 19 March 2019 - 07:17 PM

But yes, you have to calibrate on a star near the celestial equator, not too far to the horizon. Then slew to Bode's and pick a star to guide on. 




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