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mihaighita

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    50
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About mihaighita

  • Rank
    Nebula

Profile Information

  • Gender
    Male
  • Interests
    Astrophotography.
  • Location
    Italy
  1. The biggest problem with constructing an observatory anywhere near a large structure is the turbulent air that will run around the observatory. You can reinforce the structure to support the weight of the observatory, you can make a pier that is isolated from the vibrations of the structure but it will be insanely difficult to isolate the whole structure from releasing the heat into the surrounding air. I did the following "experiment" and I invite you to do the same: On 3 nights with good seeing I moved my mount between the south facing balcony, 30 feet from the house on a concrete pad that was covered with a bath rubberized carpet and 400 feet from the house in the middle of the garden. I took my time and I did the polar align within 1 arcmin and I guided a short refractor for an hour at each location. I made sure that the mount was in all 3 locations at the same hour between the nights. The results were: On the balcony RMS between 0.7 and 1.2 arcsec RMS At 30 feet from the house between 0.5 and 1 arcsec RMS At 400 feet from the house between 0.3 and 0.7 RMS Also good to remember that I have a Class A energy efficient house that does not output a lot of its heat in the environment. The best thing to do is to find a solution to "shave" the trees.
  2. Do you connect it to a USB3 port? I had problems with the connection with my Lodestar x2 with an Intel NUC gen8 that has only usb 3 connections. I tried to connect it via a USB2 hub, but I had problems even in this config. The problem solved itself the second I switched to a PC with USB 2 connector.
  3. I had an email exchange with Lucas and he told me that the above tension adjuster method for balancing will surely damage the mount. So, please don't try this!
  4. Lovely image. The second one is better, for my taste but both versions are really good. Congrats!
  5. 10Micron mounts have absolute encoders that help them get the precise position of the axis when they are measuring the current drawn by the motors. It is much more difficult to do the calculation without knowing the axis position.
  6. Mesu 200 MK2 solves that. With Mk1 there are ways to balance it perfectly. I use a system of pulleys attached to the center of the rotation axis and measure the force needed to pull in any direction. I also have another idea that I need to clear with Lucas first... The dec motor has a tension adjuster on the top that can be loosen and make the dec axis turn extremely easy. I was thinking to use that for balance and then tighten it again to operate the mount. But I need to see that this will not cause any damage to the motor axis. There is also the possibility to monitor the power needed when you are using the handpad to rotate the dec axis. Note that I am speaking only about the dec axis because the Ra axis is easy to balance due to the much bigger centripetal force.
  7. That should be a 3v coreless motor. It can operate up to 5v. The biggest problem is that, without markings, there is no way to tell the speed of the motor, and it can vary widely, from 8000 RPM up to 80000 RPM... On the other hand they are so cheap ($2-$4), you can get a bunch of them and try to see what fits.
  8. You should be able to find a replacement motor pretty easy and cheap. The filter wheels are using mostly the cheap chinease motors. Take it out and look for markings on the housing.
  9. I had the same problem with my Mesu 200 MK1. You need to update software... Also, please remember to initialize mount first (do a offset init)
  10. Computers normally, have an operating range between 10C and 50C but I doubt that it will not start at 9C. Check RAM and HDD for problems.
  11. My Mesu+ FSQ 106 on the future observatory place. This photo is from last year Mesu with Officina Stellare preparing for first light. Same spot but the column is installed. And finally, preparing for an event at a Tuscan winery, 10 inch RC + FSQ.
  12. Click Settings on the Autofocus box uncheck or adjust the frequency of autofocus from "Autofocus every" option
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