Hello friends! Im David from Chile
Like 1 month ago i bought an EQ6R Pro mount, and because the low amount of good subs that i get with it, im thinking that my mount is not ok.
ES ED102 APO FCD100
Deep Cycle Battery 33Ah (to power the mount and camera)
NO autoguide system yet...
Sharpcap polar align
Let me explain, in a normal night i try to get like 200 to 300 subs of 60s of exposure, but just 50 to 70 of them are usable, with an "ok" tracking accuracy, i know that this mount can track "ok" for like 1 to 3 minutes without guiding but, seems impossible to me to get exposures any longer than 60s.
Saturday night i try to do some captures to see the tracking accuracy of my mount, so i test five different exposures two times each at 60s, 90s, 120s, 150s, and 180s. (i did a polar align with sharpcap, and get like 2" error)
these are the results (you can zoom it to see the details): https://ibb.co/WpMh9G6
As you can see, the tracking at each exposure time was not consistent, some pictures have better tracking than the next one at same exposures, and some are like if the mount was tracking ok, and suddenly make a jump and keep tracking ok again (like the first at 120s and the second at 180s), if this drift was only by poor polar alignment I think that the star trail has to be in all the frames and look like a perfect line, not like my pictures.
what do you think???
is only a poor polar align issue?? or something is bad with my mount??
thanks in advacne for your answers!
im, not a native speaker so my English may be not so good sorry for that.