A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either

Variable stars,

Glasby, John S.

Constable

Boundaries of the Universe

<p>The boundaries of space exploration are being pushed back constantly, but the realm of the partially understood and the totally unknown is as great as ever. Among other things this book deals with astronomical instruments and their application, recent discoveries in the solar system, stellar evolution, the exploding starts, the galaxies, quasars, pulsars, the possibilities of extraterrestrial life and relativity. </p>

Reference

Routledge

The boundaries of space exploration are being pushed back constantly, but the realm of the partially understood and the totally unknown is as great as ever. Among other things this book deals with astronomical instruments and their application, recent discoveries in the solar system, stellar evolution, the exploding starts, the galaxies, quasars, pulsars, the possibilities of extraterrestrial life and relativity.

The dwarf novae,

American Elsevier Pub. Co.

The age of merely looking at the heavens, of mapping and cataloguing the positions of the stars down to fainter and fainter limits, is past. Throughout that long period the pace of astronomical discovery was necessarily very slow and for centuries it remained virtually static. The invention of the telescope and then the spectroscope brought about an acceleration in the rate of progress which has continued unabated to the present day. Scarcely a year now passes without some spectacular advance being made, so that today, with the co-operation of modern techniques in physics, chemistry, rocket technology and biology, many of the older notions have been completely overthrown and new ideas set up in their place. And now the rapidly developing techniques of rocket research have made it possible to carry astronomical instruments beyond the atmosphere which confines our visual and photographic observations to an extremely narrow band of the electromagnetic spectrum. Now we are able to view the universe in ultra-violet and infra-red light, and by X-rays and radio emissions which are otherwise almost completely absorbed by the atmosphere.  Each problem that is solved, however, only serves to present us with a host of others in increasing complexity. The boundaries are being pushed back steadily, it is true, but the realm of the partially understood and the totally unknown is still as great as ever, and it is with this vast no-man's-land of astronomy that this book is concerned. It deals, amongst other subjects, with astronomical instruments and their application, recent discoveries in the solar system, stellar evolution, the exploding stars, the galaxies, quasars, pulsars, the possibilities of extraterrestial life, relativity, etc. With this book as a guide, the reader cannot fail to experience some of the tremendous fascination of present-day astronomy and its innumerable unsolved problems.

Business & Money

Harvard University Press

The Thing in the Mist: Selected Stories

Redrum Horror

<p>Quite some time before the Lloigor returned, long before anyone had a glimpse of the terrifying 'Inhabitant of the Lake', and nearly two decades before anyone answered the 'Caller of the Black' or learned what lurked 'Beneath the Moors', the Call of Cthulhu was first heard in the British Isles by a writer named John S. Glasby. The first British author to transcribe H. P. Lovecraft's visions of cosmic horror sent to him in dreams by Great Cthulhu, John S. Glasby produced enough material dealing with the Cthulhu Mythos to fill several collections, of which this is the first to be issued by Dancing Tuatara Press.</p>

The Brooding City and Other Tales of the Cthulhu Mythos

Literature & Fiction

Genre Fiction

Ramble House

Beyond the Rim and Other Tales of Cosmic Horror

See the best price to sell, buy, or rent books by Glasby, John S.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Glasby, John S.

See the best price to sell, buy, or rent books by Glasby, John S.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Variable stars,

Boundaries of the Universe

Boundaries of the Universe

The dwarf novae,

Boundaries of the Universe

The Thing in the Mist: Selected Stories

The Brooding City and Other Tales of the Cthulhu Mythos

Beyond the Rim and Other Tales of Cosmic Horror