Observing Many articles and books on observing refer to small, medium, and large telescopes, but what are the borderlines in objective size that define small, medium, and large?
Observing I have quickly come to find out that my 3.5-inch refractor is completely useless on faint objects, such as nebulae, galaxies, globular clusters, and comets. Will they be well within my reach with an 8-inch telescope?
Science I recently found out about a great meteor shower that occurred on November 14, 1833. What actually caused this great event, and is there anything today that compares to it?
Observing Are either of the moons of Mars large enough to eclipse the Sun as seen from the surface of Mars?
