By Ian Ridpath

ISBN-10: 0192115960

ISBN-13: 9780192115966

Astronomy is increasing nearly as quickly because the universe itself, and the proliferating clinical jargon can occasionally baffle even the main committed beginner. Now, in a few 4,000 concise, up to date entries, this dictionary cuts a transparent direction during the maze of complicated technical language, providing complete, transparent definitions drawn from all elements of astronomy. Compiled by means of Ian Ridpath, a fellow of the Royal Astronomical Society, and knowledgeable staff of participants, A Dictionary of Astronomy comprises the newest entries from astrophysics and cosmology to galaxies and time.Here are succinct definitions for the massive Bang idea, comets, eclipses, Magellanic Clouds, Mars, quasar, relativity, and variable stars. Entries on telescopes and different measuring units, observatories, area missions, and lately named sunlight process gadgets convey how astronomers have explored the universe. The Dictionary additionally presents biographical entries on eminent astronomers from Copernicus to Edwin Hubble.From black gap to white dwarf, and from spiral galaxies to sun waves, A Dictionary of Astronomy opens a window at the universe for newbie astronomers all over.

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Extra resources for Dictionary of Astrononmy (1998)(1st ed.)(en)(532s)

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The largest Apollo asteroid is (1866) Sisyphus, diameter 8 km. Other notable named Apollos include *Hephaistos, *Phaethon, *Toro, and *Toutatis. The Apollo asteroids were once thought to be extinct cometary nuclei, but in fact Jupiter may perturb asteroids from near the 3 : 1 Kirkwood gap in the main asteroid belt into Apollotype orbits. See also NEAR-EARTH ASTEROID. 190 BC) Greek mathematician, born in modern Turkey. e. that they are conic sections. The orbital path of an unperturbed body moving in a gravitational field follows one of these three curves, as would come to be appreciated by later astronomers such as E.

Y. farther than Proxima Centauri. Alpha Crucis The brightest star in the constellation Crux, also called Acrux. 7. 8. y. distant. Alpha Cygnid meteors A meteor shower with ill-defined activity limits, emanating throughout July and August from an apparently stationary radiant at RA 21h 00m, dec. +48° near Deneb. Observed rates seldom exceed 1–3 meteors/h, and there are doubts as to the shower's authenticity. html (1 of 2) [9/29/2007 7:47:11 PM] Document Alpha Cygni star A type of supergiant pulsating variable star exhibiting *non-radial pulsation; abbr.

Y. farther than Proxima Centauri. Alpha Crucis The brightest star in the constellation Crux, also called Acrux. 7. 8. y. distant. Alpha Cygnid meteors A meteor shower with ill-defined activity limits, emanating throughout July and August from an apparently stationary radiant at RA 21h 00m, dec. +48° near Deneb. Observed rates seldom exceed 1–3 meteors/h, and there are doubts as to the shower's authenticity. html (1 of 2) [9/29/2007 7:47:11 PM] Document Alpha Cygni star A type of supergiant pulsating variable star exhibiting *non-radial pulsation; abbr.

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Dictionary of Astrononmy (1998)(1st ed.)(en)(532s) by Ian Ridpath


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