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Author Archives: Elias Ibrahim
Understanding Retrograde Motion
the planets as seen from Earth Retrograde motion is when a planet appears to move backward in its orbit relative to the rest of the night sky. Planets such as Mars and Jupiter can be seen in retrograde motion. Retrograde motion occurs due to the movements and relative positions of other planets around the sun. […] Continue reading
Historical Figures in Context
The dates of birth and death for major astronomical figures. Nicolaus Copernicus/Born: February 19, 1473. Died: May 24, 1543 Galileo Galilei/Born: February 15, 1564 Died: January 8, 1642 Johannes Kepler/Born: December 27, 1571. Died: November 15, 1630 Isaac Newton/Born: January 4, 1643. Died: March 31, 1727 Tycho Brahe/Born: December 14, 1546 Died: October 24, 1601 […] Continue reading
The vast size and scale of the Universe
Cosmic Background Radiation Astronomy, Class, Uncategorized Today in this blog post I will describe the size and scale of the universe from my understanding. To start off, light from the sun takes approximately 8 minutes to reach Earth, yet light from the farthest parts of the observable universe would take 13.8 billion years. Keep in […] Continue reading
The vast size and scale of the Universe
Cosmic Background Radiation Today in this blog post I will describe the size and scale of the universe from my understanding. To start off, light from the sun takes approximately 8 minutes to reach Earth, yet light from the farthest parts of the observable universe would take 13.8 billion years. Keep in mind, counting one […] Continue reading
About Myself
by me, On Staten Island Ferry in front of Statue of Liberty My name is Elias Ibrahim and I will talk a little about me. I am from Memphis, TN and I am currently a freshman at Vanderbilt University and I also take astro2110 . I am a Jazz studies Major and my primary instrument […] Continue reading