Constellation Guide
The International Astronomical Union recognizes 88 constellations
covering the entire northern and southern sky. Here is a selection
of the most familiar and easily seen constellations in the northern
sky.
The Constellations and their Stars
An interactive site with lots of Java applets to illustrate the
night sky. The site covers something as simple as moon phases
to pin pointing Messier objects. For astronomers of all ages.
Imagine the Universe Science
Explore a universe of black holes, dark matter, and quasars... A universe full of extremely high energies, high densities, high pressures, and extremely intense magnetic fields which allow us to test our understanding of the laws of physics.
The Life Cycles of Stars
New stars come in a variety of sizes and colors. They range from blue to red, from less than half the size of our Sun to over 20 times the SunÁs size. It all depends on how much gas and dust is collected during the starÁs formation.
The Life and Death of Stars
Astronomers believe that molecular clouds, dense clouds of gas located primarily in the spiral arms of galaxies are the birthplace of stars.
Make
Your Own Star Clock
Print this page from browser and cut out the circles. Then when
you are out star gazing, you'll also know what time it is. 'Course,
you could just wear a watch.
Milky
Way
What do we see when we look up in the sky? Many times it's only
clouds! But when the clouds are gone, the show begins!
Star
Chart
National Geographic's chart of the heavens.
Stars: World Book at NASA
A star is a huge, shining ball in space that produces a tremendous amount of light and other forms of energy. The sun is a star, and it supplies Earth with light and heat energy. The stars look like twinkling points of light -- except for the sun. The sun looks like a ball because it is much closer to Earth than any other star.
Stars:
Birth, Life & Death
Stars are alive. They are born, they live, they die. Some
are big, others are small, and their size effects how long they
live. Some may finally die after more than 10 billion years;
others survive for a mere 100 million years.
Surf
the Northern Sky
Constellations of the northern skies. You can zoom in for a more
detailed maps of the stars in each region.
See also Myths, Fables, Fairy Tales
and Folklore