Guiding and APT

[Andy56]

Hi,

I'm new to all this and have even more questions.

I tried some guiding the other night now that an adaptor arrived for the ASI 120MM + Sky Watcher 5x90. It ran well once I have found a bright enough star for the guider, in fact I got a 300 second sub with a tiny amount of trailing but I think some this could declination or PA error.

Ok my question is: What is the purpose for the connection between APT and PHD2. I have a Star Adventurer so no Dec guiding.

 

Many thanks

Andy

Edited March 21, 2021 by Andy56
Grammar and making one of the sentences sensible

[alacant]

If e.g. you dither between frames, phd2 can tell apt when it has settled sufficiently to begin the next frame.

HTH

[Budgie1]

Likewise APT will tell PHD2 when an image is complete and issue the command to start dithering.

[Andy56]

Many thanks for the info.

Now I feel a need to use dithering. Great hobby!

Andy