Telescopes are specialist optical instruments that have been around for over 400 years and are useful for many applications including seafaring, military operations and especially stargazing. But not ...

Buying a telescope, like buying a car or stereo equipment, is subject to your tastes as a consumer. In other words, the choice is up to you — but Astronomy can provide some guidelines to make your ...

Michael J. I. Brown receives research funding from the Australian Research Council and Monash University. While the unaided eye or binoculars can reveal much of the night sky, a telescope reveals so ...

THE Yerkes Observatory, which has recently been completed and inaugurated, contains in its instrumental equipment the largest refractor in the world, the diameter of the object-glass spanning 40 ...

On January 11, 1672, the Fellows of the British Royal Society were treated to a demonstration of Isaac Newton’s reflecting telescope, which formed images with mirrors rather than with the lenses that ...

The Cambridge Dictionary defines magnificent as “deserving to be admired.” I had no trouble doing that when I walked into the offices of Stellarvue to get an extension ring for my SVX140T and to visit ...

This lightweight 2.7-inch/70mm achromatic refractor uses its relatively long length to produce natural-looking views of planets and the moon, but with anything else it’s underwhelming. It’s also ...

Aimed at beginners and those looking to upgrade, this 4-inch refractor is at its best with the moon and planets and comes with a lens cap that doubles as a novel smartphone holder for convenient ...