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I am trying to figure out how to get the 0 position in NINA's framing setup (see image) so that ZERO on NINA's rotation scale matches ZERO on the rotator. Do I need to use the Nightcrawler software to do this or can I do it all in NINA (preferred)? Right now, when I use NINA's "Determine Rotation from Camera", the zero position on the rotator does not match the 0 position on the sensor boundary image in NINA nor does it match the 0-359 degree scale in NINA. Thanks, Jerry  |
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The angular position in NINA is referred to the celestial coordinates so that zero is due North and 90 is due East (if I'm not mistaken). The zero on the rotator is referenced to the physical zero point of the local encoder (or stepper position for the lower end of rotators) and I assume, never having used the NC, that you have to zero-in the two.
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When NINA is scheduled to rotate, it does a plate solve to determin the current rotation, calculates the difference and orders the rotator to move that difference. There should be no need to zero-in since the rotator's driver should convert the difference from degrees to mechanical steps and move accordingly what ever the current mechanical position is. If the rotator has a rotation limit set, the driver should probably move the long way round as not to exeed the limit. I don't use NC, though… Clear skies! |
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I believe once you have your rotator adjusted to your preferred orientation angle, you can 'zero' the angle measurement in the nitecrawler software.
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