# Astronomical Objects

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## Astronomical Objects Video Lessons(26 video lessons)

Watch simple explanations of Astronomical Objects and related concepts.

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Is there one universal ephemeris?
What is an ephemeris system?
Find the orthoganal trajectories of the family. Use a graphing utility to graph several members of each family. { y = Ce^x }
Find the orthogonal trajectories of the family y = C e^x. Use a graphing utility to graph several members of the family.
What are celestial coordinates?
1. Find the orthogonal trajectories of the family of curves. (Use C for any needed constant.) y^2 = 7kx^3 2. Solve the initial-value problem y' =\frac{5 \sin x}{\sin y} , y(0) = \pi/2.
Find the orthogonal trajectories of the family of curves 2y(x^2+c_1) = 5
What is space dust made of?
What is the sun made of?
Black holes are objects whose gravitational field is so strong that not even light can escape. One way of thinking about this is to consider a spherical object whose density is so large that the es

## Astronomical Objects Quizzes(86 quizzes)

Check your mastery of this concept by taking a short quiz.

Types of Celestial Object Trajectories
Cosmic Recycling
Dilations on a Graph
Characteristics of Earth's Atmosphere
The Sun: Quiz & Worksheet for Kids
Meteors: Quiz & Worksheet for Kids
Moon Facts: Quiz & Worksheet for Kids
Life Cycle of Black Holes
The Solar Nebula Theory
Atmospheric Layers Facts for Kids

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