Stellar Characteristics: Luminosity, Magnitude, Size, and Distance

Learn about

  • Chemical Composition of Stars
  • Spectral Classification of Stars
  • Stellar Mass and Luminosity
  • Stellar Radius and Temperature
  • Stellar Sizes and Distances
Tagged: astronomy

Star Systems

Learn about 

  • Binary Stars
  • Star Clusters
  • Galaxies
  • Survey of Stars
Tagged: astronomy

Observing Stellar Objects

Learn about

  • Telescopes and Observations
  • Studying Stellar Objects
  • Calibrating the Positions of Stars
  • Brightness and Magnitude of Stars
  • Photometry of Stars

Tagged: astronomy

Classification of Stars

Learn about the types of star classification systems as well as the life and death of stars like our Sun and others
Tagged: astronomy

Planetary Geology of Inner Planets and Pluto

Planetary Geology: Exploring the Geological Mysteries of the Solar System Planetary geology, also known as astrogeology, is the branch of geology that studies the solid objects in the Solar System...
Tagged: astronomy

Planetary Magnetism of the Inner Planets

Learn about what causes planetary magnetism and the inner planets' magnetic characteristics
Tagged: astronomy

Moons of the Solar System

Learn about how natural satellites form and the characteristics of some, not all, "moons" in the solar system
Tagged: astronomy

Planetary Ring Systems

Learn how planetary rings are formed and why some planets have them while others do not
Tagged: astronomy

Planet X and the Sun's Sibling

Planet X: An Overview Planet X represents a theoretical ninth planet located in the outer parts of our Solar System. It is believed to be a giant planet, similar to...
Tagged: astronomy

Planet Classification

Learn how planets, both terrestrial and jovian (gaseous), are classified
Tagged: astronomy

How Astronomy Has Impacted Our Lives

Lear about applied astronomy

  • Astronomy & Technology
  • Astronomy & Space Exploration
  • Astronomy & Earth Sciences
  • Astronomy & Climate Studies
  • Astrobiology
Tagged: astronomy

Planetary Motion of Earth

Learn about planetary motion and how it impacts life on earth
Tagged: astronomy