Wael Hassan

I made a profile on phd with mount HEQ5 and camera zwo 120 mms ....i use usb cable with my Windows tablet

This is an example of the doubled stars I have now.

Thanks alot.... i did all the stwps as you said but i got very noisy guiding too.... i started all over again to find where the problem is and here is my findings: 1- i disconnect st4 cable and rely only on the usb , when i dud that i start to see the RA blue curve in the guiding. 2- There were significant changes in the peaks of RA curve so i checked on the eqmod and ascom setup...i disconnect the ascom toolbox and reconnect the mount from the profile of phd then i discovered that the mount was not tracking in the eqmod interface so i clicked on sideral tracking. 3- Things become so better and the RA and Dec curves have peak between +6 -6 on PHD guiding ...i tried to take image for 6 minutes exposure it gives me nice round stars but its problem is that the stars are doubled...they have no trails but they are two stars near each other by very small distant....thats my problem now with guiding .

Hello, I just started astrophotography and i have two questions... Is there a max exposure time after which there will be no added data to the image? i.e If i take a 7 hours exposure to orion nebula , then if i take 10 hours there will be more data and details in picture... so at what exposure time there will be no data added more and will be useless to take more exposure for the image? The second question: i took last night several images for Ic 4606 but i needed to change the battery so i lost some time and i stop the guiding then the orientation of the stars changed a little and i could not return to first orientation.... so how could i solve this problem during stacking ? Or the stacking app has a feature to aligh the images to one orientation ?

Yes this is the strange thing in my connection thats why iam asking why phd not work until i connect both st4 cable plus the usb cable between mount and pc....i used profile for st4 cable and put the mount " on camera" but phd didnt work...i make another profile and put "Skywatcher heq5" on the mount then connect the usb cable but phd didnt work also....it worked only when i put the st4 cable beside the usb cable.

Iam using skywatcher eq 35 ....my main scope is Redcat 51

Iam using xwo 120 mms guide camera and ASI guide scope 30mm of 120mm fical length.... i discovered that the mount were not tracking even when i switch sideral tracking in the eqmod app... also the autoguiding isnt good until i put the st4 fable with the usb cable to the mount...yes both of them must be connected sothat the autoguiding become better ....i dont know why is should put both ...i should only put st4 or the usb but they didnt work lonely

Thanks for this valuable info... i found very strange thing ...i clicked on tracking option in the hand control of the mount and once i did that the autoguiding starts .... but after a few seconds it gave me a significant deviation away from guide star again....so situation now is that the phd read my mount but it cant make suitable cotrection for it ..... i made very precise polar alignment by sharpcap by the way

Hi Skybadger ; In the first attached photo it shoes that there is Guiding at the lower left of the picture... is this what is supposed to be or you mean something else?

Hello, I am still having problem with PHD in autoguiding.... i can move the mount with EQMOD direction keys so there is no connection problem , Aldo the guide camera is connected to sharp cap and PHD withiut any problems . The only problem i have is between the mount and PHD , The mount didnt recieve any signals from PHD during autoguiding so it doesnt move also when i try to use the manual guide in PHD there is no movement at all.