Astronomy Basics
Discover what you need to know about astronomy. This basic astronomy information answers frequently asked questions about astronomy and provide definitions and history.
The Origin of the Universe
It was only recently discoverd that the Universe even had a beginning. Now, scientists are trying to solve the mysteries of the early Universe. The leading theory to explain how the Universe came into existence is known as the Big Bang theory. However, there are still many things that the Big Bang theory struggles to explain.
It was only recently discoverd that the Universe even had a beginning. Now, scientists are trying to solve the mysteries of the early Universe. The leading theory to explain how the Universe came into existence is known as the Big Bang theory. However, there are still many things that the Big Bang theory struggles to explain.
What Is Astronomy?
Astronomy, derived from the Greek words for star law, is the scientific study of all objects beyond our world, and the process by which we seek to understand the physical laws and origins of our universe.
Astronomy, derived from the Greek words for star law, is the scientific study of all objects beyond our world, and the process by which we seek to understand the physical laws and origins of our universe.
Astronomy, Astrophysics and Astrology
A comparison of the terms astronomy, astrophysics and astrology. Often confused, the differences and similarities are analyzed and discussed.
A comparison of the terms astronomy, astrophysics and astrology. Often confused, the differences and similarities are analyzed and discussed.
Laws of Planetary Motion
Johannes Kepler (1571-1630) was a German astronomer and mathematician. After Tycho Brahe (1546-1601) settled in Prague in 1599 (then the site of the court of the German emperor Rudolf) and became court astronomer, he hired Johannes Kepler to carry out h…
Johannes Kepler (1571-1630) was a German astronomer and mathematician. After Tycho Brahe (1546-1601) settled in Prague in 1599 (then the site of the court of the German emperor Rudolf) and became court astronomer, he hired Johannes Kepler to carry out h…
Planetology
planetology - from an ever growing glossary of space and astronomy definitions. Find the definitions for planetology and all your space and astronomy related words in this online dictionary - glossary.
planetology - from an ever growing glossary of space and astronomy definitions. Find the definitions for planetology and all your space and astronomy related words in this online dictionary - glossary.
Heliocentric - Sun Centered - Universe
Although many earlier philosophers had theorized that the Earth was not the center of the universe, it wasn't until the publication of Nicolaus Copernicus' "De Revolutionibus Orbium Coelestium" (On the Revolutions of the Celestial Spheres) that the Heliocentric model of the universe took shape.
Although many earlier philosophers had theorized that the Earth was not the center of the universe, it wasn't until the publication of Nicolaus Copernicus' "De Revolutionibus Orbium Coelestium" (On the Revolutions of the Celestial Spheres) that the Heliocentric model of the universe took shape.
What Would Happen If The Sun Was Gone?
What Would Happen If The Sun Was Gone? Frequently Asked Questions About Space - Basics Series; What You Need To Know About Space. Discover the answers to some frequently asked questions about space.
What Would Happen If The Sun Was Gone? Frequently Asked Questions About Space - Basics Series; What You Need To Know About Space. Discover the answers to some frequently asked questions about space.
Astronomy 101
Here is a free ten lesson basic astronomy course. Learn a little about the history of astronomy as well as our universe and how to view the night sky. Earn your certificate.
Here is a free ten lesson basic astronomy course. Learn a little about the history of astronomy as well as our universe and how to view the night sky. Earn your certificate.
Star Magnitudes - Explanation of Visual Magnitude from Apparent ot Absolute
"Visual magnitude" is a scale used by astronomers to measure the brightness of a star. The term "visual" means the brightness is being measured in the visible part of the spectrum, the part you can see with your eye (usually around 5500 angstroms).
"Visual magnitude" is a scale used by astronomers to measure the brightness of a star. The term "visual" means the brightness is being measured in the visible part of the spectrum, the part you can see with your eye (usually around 5500 angstroms).
What Is The Solar System?
Solar means dealing with the sun, Sol. Our sun is just a star, the closest one to Planet Earth. The Solar System is everything that centers around the sun. That includes 8 planets as well as some smaller objects such as asteroids, comets and meteoroids.
Solar means dealing with the sun, Sol. Our sun is just a star, the closest one to Planet Earth. The Solar System is everything that centers around the sun. That includes 8 planets as well as some smaller objects such as asteroids, comets and meteoroids.