secular parallax

Directory

References

Discover

A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

Inventors and Inventions of the Industrial Revolution

Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army

8 Deadliest Wars of the 21st Century

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

Santa Claus flying in his sleigh, christmas, reindeer

Was Santa Claus a Real Person?

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

Diverse elementary school children wearing school uniforms running outside of school. Boys girls

Pro and Con: School Uniforms

Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint

8 of the Largest Empires in History

secular parallax

astronomy

Learn about this topic in these articles:

solar motion calculations

In Milky Way Galaxy: Solar motion calculations from proper motions
…often referred to as the secular parallax. The secular parallax is defined as 0.24h/r, where h is the solar motion in astronomical units per year and r is the mean distance for the solar motion solution.
Read More