Hi Gene, 0.01 arcsec is way too high resolution. Unless you have a telescope with 12.6m diameter (sin(delta) = 1.22 * lambda/D, with delta the angle in radians, lambda the light wavelength (take green 500nm) and D the diameter.) Even then, in extremely good skies from ground level, our atmosphere might only allow an arcsec of seeing (scintillation or twinkling of the stars). This is why you guys over the pond launched Hubbly into orbit. And ground based astronomers use adaptive optics these days. And yes, I am an astrophysicist using LinuxCNC for fun. Cheers and clear skies, Karl
Am 18.07.2020 um 19:01 schrieb Gene Heskett: > But for astrophotography, they are mentioning .01 arc-seconds or better, _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
