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About derherr65

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    North Texas
  1. Armadillo, coyote, dogs, birds, and lots of rabbits.
  2. GOTO is very sensitive to date, time, location, and level. If you haven't set your exact lat/long do so. Be fairly meticulous about all of the above numbers. Like a previous poster I have a different system, Meade. There are sub menus that allow the user to retrain the motors, etc. I found that helped my scope significantly.
  3. To avoid eye strain you'll want to adjust the focus of the binoculars the same way you adjust the reticle on a rifle scope. Look at a very distant object (stars work well), pull the binoculars up so you can see the same object through them. You probably will notice your eyes adjust focus. Keep changing the focus of the binoculars until your eyes no longer have to change focus between visual stars and binoculars. Its likely left and right eyes will have slightly different focus point, so if your binoculars have that feature adjust them independently.
  4. Short exposures of planes crossing the moon or as pointers to constellations would also be interesting, perhaps even challenging? Be creative.
  5. Being clairvoyant I'm sure he's gotten the answer by now.
  6. They make a simple round bubble level that would work well. You would still like to rotate the dob to cancel out any error with any of the above levels, I would think.
  7. 1" = 25.4mm, crisis averted. I had to round my 4.5 reflector up to 5 for y'all.
  8. Amateurs! Puppies are not optical devices, they are telescope accessories. By alternately immitating a speed bump and a speeder they aid in slowing motion in their area to prevent accidental bumping of the scope. They are also excellent thermal foot warmers. Any dropped item will be found easily even in pitch black conditions, though may not be returned in the same condition as found. Another use is to mitigate the sticky fingered nature of children, as the puppy's fur takes the initial abuse.
  9. The mount is something I can fabricate, I have a full garage. Looking to give in a little to aperture fever, on the smallest budget possible, while still having goto. I was thinking that means buying a secondhand 6" OTA only, or OTA on a cheap stand. Remaining parts could be sold as a working unit to further reduce cost.
  10. I would love to replace my 4.5" OTA(Meade DS2114 goto) with a larger aperture version that the goto mount would still handle. Are there any light 6" or super compact and light 7-8" that might work?
  11. Made some progress tonight. In and Out focus have similar views, and have reasonable clarity when focused. Ran into a mechanical issue so did not fully test focus. Due to tracking a smaller circle I realised the shadow of the center spot on the primary does not circle and should be centered in the laser receiver regardless. I think sixela is right. The corrector lens makes this model highly sensitive to even small laser errors, and the sloppy focuser aggravates that even more. What sort of laser accuracy is required in my 40' span?
  12. For those of you keeping score, still definitely scribing a circle, though slightly smaller than last time. Now, on to scope collimation.
  13. Ok, laser collimator now accurate to 1/2cm over 12m... or less that 1/4" over 40'. The nearest tape measure happened to be metric. Any closer is going to require bearings and a driver motor.
  14. Too low in the sky for my area. I was using orion, and can see at least a 4.75 reliably tonight.
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