When focusing is difficult due to poor seeing conditions, what critical task can take an observer up to an hour on troubled nights?
Answer
Waiting for momentary steady air pockets to pinpoint the sharpest focus.
Achieving perfect focus is essential, and when atmospheric turbulence blurs the image, observers must wait for brief moments when the air steadies to pinpoint the exact sharpest focus, a process that can consume significant time.
#Videos
What Are The Drawbacks Of A Reflecting Telescope? - YouTube
Related Questions
What optical flaw is inherent to standard refracting telescopes due to the objective lens acting like a prism?Relative to reflector designs, what is noted about the initial cost of high-quality refractors for the same light-gathering potential?What mechanical feature in Newtonian and SCT designs blocks some light and reduces the actual light gathered compared to a refractor of the same aperture?Why can an Alt-Azimuth mount be frustrating for high-magnification planetary observation?What specific optical shape do smaller Newtonians often use instead of the necessary parabolic shape in budget models, severely degrading image quality?According to the text, what is almost always the greatest performance limiter for telescope views, regardless of instrument quality?Which telescope type requires regular alignment of its mirrors, a process known as collimation, which is an added maintenance responsibility?What time-consuming disadvantage affects closed-tube systems like refractors and Catadioptrics when brought outside on a cool night after being indoors on a warm evening?What trade-off is characteristic of Catadioptric systems (SCT/MCT) regarding their physical structure versus their field of view?When focusing is difficult due to poor seeing conditions, what critical task can take an observer up to an hour on troubled nights?