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I'm super happy to have found this forum of night sky enthusiasts and look forward to learning and sharing on this site! I am an amateur stargazer fortunate to live in a rural area with great dark skies. I'm used to using a GoTo Celestron.
Unfortunately I'm having a problem with a newly purchased Orion SkyQuest XTg 10.
I've only used it a couple of times. Recently, when I turn on the power, the hand controller (a SynScan V4 GoTo, version 04.39.04) states a message "Both axes...no response!" which means the motors won't work.
I've unplugged all the cords & replugged to no avail. The power comes from a new Orion Dynamo Pro, 12 V, Lithium Power Supply which was recommended.
Does anyone have any ideas what the problem might be?
Thank you 🌟
This is a recent edit of data I collected back in January. Image is taken with a Canon 450Da and Canon EF L 70-200mm f/2.8 lens sitting on a Sky-Watcher Star Adventurer. It’s quite a large crop from a 200mm frame. 25 x 3 min guided subs. Stacked in SiriL and processed in Photoshop. Image taken in Northumberland under Bortle 3 skies.
For deep sky observations, can you make suggestion which will be more fitted with my behavior: mobility is not a big concern as a least 11" aperture is must whereupon computerized stuff is no good choice for me.
Hope someone with more experience than I, which basically means anyone that has successfully collimated a Newtonian, can answer a couple of compound questions I have based on my first and only attempt at secondary collimation of my SkyWatcher Flextube 250.
1) All three of my secondary collimation screws were extremely snug before I did anything and I was only able to comfortably turn them counter-clockwise. Is this normal? Do I need to loosen all three screws first before I can properly start collimation? Should I be turning any screw beyond "snug"?
2) Before collimating, I placed a yellow sheet inside my OTA opposite my focuser tube and I placed a red sheet between my secondary and primary. The view this gave through my focuser tube was of a red circle surrounded by a partial yellow ring (the secondary mirror stalk blocking a portion of this yellow annulus). While independently turning each of the secondary collimation screws counter-clockwise I looked down the focuser tube (both with and without a sight tube installed) expecting to see some change in the shape of the red area (more or less circular) and/or the yellow area (less or more even thickness). I turned the screws no more that 2 complete revolutions. I did not perceive any appreciable difference in what I saw and I turned each screw back (clockwise) to their original tightness before working with another of the screws. Does it make sense that I didn't perceive any change? Should I have turned the screws more revolutions? Should I have loosened more than one at a time?
Very confused and looking for your help. Thanks