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"This is the definitive book for those who are serious about this fascinating aspect of astronomy. It deals with equipment (you can start quite modestly with commercial or home-made instruments), observing methods from binoculars upward, CCD camera techniques, and finally advanc…
"This is the definitive book for those who are serious about this fascinating aspect of astronomy. It deals with equipment (you can start quite modestly with commercial or home-made instruments), observing methods from binoculars upward, CCD camera techniques, and finally advanc…
Double stars are the rule, rather than the exception: our solar system, having a single sun, is in the minority. Orbiting satellites, ground-based observatories and interferometers have all helped discover many hundreds of new pairs - but this has left enormous numbers of wide, …