The popular option is to use an equatorial mount — aligning with the north or south celestial poles and tracking the night sky at a 'sidereal' rate. This will keep your target in frame for a ...
Polaris, known as the North Star, sits at the center of this image, which captures the movement of stars around the north celestial pole over several hours. Credit: NASA/Preston Dyches The North ...
When selecting a suitable guiding camera, there are a few important parameters to consider. While in the past autoguiding cameras were CCDs, today’s cameras use CMOS technology. These sensors offer ...
In addition to refraction hastening sunrise and delaying sunset, there is another factor that makes daylight longer than night at an equinox: sunrise and sunset are defined as the times when the first ...