Tuesday, 24 March 2015

First try with a telescope


As the autoguider worked quite fine with a normal DSLR camera, I decided to try it on a telescope. I used the same 9x50 finderscope for guiding as before. I only used one motor for RA, and do not have DEC correction. The very first picture, did not look promising.. 


After a few small adjustments and became a bit better, I also had to rearrange the weights on the mount, but it was still far from perfect.


The guider showed some errors which appeared periodically (green and yellow on the picture below). As the rotation speed of the motor was like 25% faster than it should have been, the guider kept on stopping and restarting the motor, which resulted a very aggressive guiding.    



I've just placed a part of the picture above to a star map to see the what's wrong. It seems that the star trails are mostly in RA direction. So, if the guiding speed is fixed and the corrections are smoother, that will hopefully solve this problem.




No comments:

Post a Comment