Articles related to "Variable Stars"

Amateur astronomer Anthony Wesley's discovery of an impact on Jupiter illustrates how amateurs can still make important contributions to the science of astronomy.

The north star, Polaris, is neither constant nor particularly bright as many believe. Shakespeare got the poetry right but the astronomy wrong for this star.

Most stars vary in brightness. What are some of the major types of variable stars?

An unsung heroine of astronomy finally receives well-deserved credit for her tireless work and momentous results.

Dr. Helen Sawyer Hogg spent her life watching the skies through the lens of a telescope, searching for Globular Clusters, encouraging star-gazing and promoting astronomy

The fall constellation of Cetus the Whale contains a "wonderful" star known as Mira.

Many people interested in astronomy pursue it as a hobby. Amateur astronomers become quite knowledgeable about the night sky from their hobby. Here's how to get started.

Find the 20 top brightest stars: learn their names, where they reside, and special facts.

Students in middle school and high school can do observations or experiments to show they have an analytical grasp of astronomy.

Brief bio and discoveries of Edwin Hubble, who discovered more galaxies and that the universe expands; also known for Hubble's Law.

Betelgeuse, also known as Alpha Orionis, is a red supergiant star that could undergo a supernova in the not-too-distant future.

Most stars are actually binary stars or multiple star systems. The classifications include visual binaries, eclipsing binaries, and spectroscopic binaries.

No better examples of how Hollywood can both utterly botch and elegantly propound one of science fiction's oldest tropes than in 1996's Independence Day and The Arrival.

Many stars are variable stars that change brightness. Any possible solar variations must be very small, but does the Sun's energy output vary?

Stars produce all of the heavier elements in our universe. They also exhibit life-cycles of their own.

Are you and everything around you expanding as the Universe balloons outward?

Until the Mt Palomar 200" telescope, Mt Wilson's Hooker 100" and the 60" were the world's largest telescopes, allowing Edwin Hubble to discover the expanding universe.

Vesto M. Slipher was the first astronomer to measure the spectrum of an external galaxy. His work led to Hubble's discovery that the universe is expanding.