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How Come Using Starry Nigh Pro Plus 7 + Celestron CGEM II The Crosshairs Are Moving On The Screen But Not Keeping Up With The Object? (Answers: Need More Info, But Confirm Time, Date, Location For A Start)

Elliott Astro-Imaging

March 28, 2020 14:43

Answered

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good morning, i am writing this in regards to the product i have "starry night pro plus 7" and i have hooked up my mount " celestron CGEM ii mount" and when connected to the computer the goto is completely wrong...as the red cross hairs that say "celestron nexstar +Cgem" moves in the sky but looking at the pictures on my cameras it is tracking perfectly....i am not understanding why the cross hairs are moving on the screen and not keeping up with the object...i have made sure to do the 2 star alignment in the beginning and use a calibration star and it says align success and then i go into the program and have the celestron drivers installed and click connect and it shows where the mount is looking at but then i go to an object and its 20 degrees off and it gets worse and worse as the night goes along...if someone can please help me with this because i am completely stumped asked this a few years back when i had the avx as it was the same issue and it seems like no one else is having this problem and if I can’t get this fixed i may have to find another software

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4 comments

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  Jeffery Best March 31, 2020 01:01

  Was looking for another topic & stumbled upon yours...…….See if this will help you...…I use CPWI to align my Celestron CGEM. You can go to Celestron's website for details & free download of the software. Once aligned, I switch over to Starry Night Pro Plus 7 to slew my scope. Leave CPWI running as it has effectively replaced the Nexstar for tracking & you can also add more alignment stars very easily. This works out great for me. I never have to touch the Nexstar keypad.

  Another thought...……...Your location may also be setup wrong in Starry Night. If not correct your goto's will be wrong. CPWI needs your correct location too or goto's will be incorrect there as well...……..Hope this helps...…...Good luck!

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  Pedro Braganca April 01, 2020 14:37

  Hi Elliot, as Jeffrey mentions, ensure you have your location, time (and timezone) set correctly in Starry Night and matching the location/time/timezone on the telescope handbox.  There is a Sync option in Starry Night.  Refer to manual for more info.

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  Elliottastronomy April 02, 2020 06:24

  i did..(time matching) (location matching) both for the mount and for the program.... I downloaded the most current drivers for ascom along with the celestron driver (nexstsar) and I hit connect as it’s com6 and it’s after I align the telescope outside and get it all aligned...and it says align success...go inside, hit connect and it shows where the mount is pointing which is good, HOWEVER the marker still moves and doesn’t keep up with the star that its looking at...so over time i slew to an object and I’m 10-30 degrees off.... i have done everything, and I’m at wits end And I don’t know what else to do!! Ps..It goes exactly as this...hand controller...micro usb cable from the bottom of the controller into a 7 port hub (6 if the used) then into a 50 foot usb2.0 powered repeater cable into the dell laptop.

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  Keiron Smith April 02, 2020 15:49

  Hi Elliot, 

  Try a direct cable connection from computer to hand controller.  Remove the USB hub, and confirm the issue still persists.

  Thanks!