Электронная книга: Ball Robert Stawell «Great Astronomers»

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• Great Wall (astronomy) — The Great Wall (also called Coma Wall), sometimes specifically referred to as the CfA2 Great Wall, is the second largest known super structure in the Universe (the largest being the Sloan Great Wall). It is a filament of galaxies approximately… …   Wikipedia

• Great Attractor — a vast concentration of matter whose gravitational pull alters the direction and speed of the Milky Way and other galaxies as they spread apart in the expanding universe posited by the big bang theory. [1985 90] * * * Proposed concentration of… …   Universalium

• Great Observatories program — Four Great Observatories satellites NASA s series of Great Observatories satellites are four large, powerful space based telescopes. Each of the Great Observatories has had a similar size and cost at program outset, and each has made a… …   Wikipedia

• Great Comet — A Great Comet is a comet which becomes particularly bright and is very spectacular to a casual observer on Earth. Great comets appear, on average, once every decade. Predicting whether a comet will become a great comet is notoriously difficult,… …   Wikipedia

• Great Dark Spot — The Great Dark Spot as seen from Voyager 2 The Great Dark Spot (also known as GDS 89[1]) is the name given to a series of dark spots on Neptune similar in appearance to Jupiter s Great Red Spot. The first one was observed in 1989 by NASA s …   Wikipedia

• Great year — A Great year (also known as a Platonic year or Equinoctial cycle) is the time required for one complete cycle of the precession of the equinoxes, about 25,765 years, at the current rate. Astrologers consider it important, while modern day… …   Wikipedia