Astronomy
What is the name of the largest planet in our solar system?
Jupiter
What is the closest star to Earth?
Proxima Centauri
What causes the different phases of the Moon?
The relative positions of the Sun, Earth, and Moon
What is a light-year?
The distance light travels in one year
Which planet is known for its beautiful rings?
Saturn
What is a black hole?
A region of space with extremely high gravitational force
What is the process by which stars convert hydrogen into helium?
Nuclear fusion
What is the name of the red planet?
Mars
Which of the following is not a type of galaxy?
Andromeda galaxy
What is the name of the force that keeps planets in orbit around the Sun?
Gravitational force
How long does it take earth to orbit the sun.
365.24 days
The earth goes around the sun slightly elliptical giving us ?
Aphelion and Perhelion
when is the earth point of orbit closets to the sun
Aphelion
when is the earth point of orbit Furthest from the sun?
perihelion (Januaury)
What is Eccentricity ?
is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
What is one of the Orbital elements that must be specified to define the shape and orientation of the elliptical orbit?
Eccentricity
At Aphelion how far is the earth from the sun?
[162.1 Million Km] (94.5 Million Miles)
At Perhelion how far is the Earth from the Sun
[147.1 million kilometers] (91.4 Milles)
The Earth's axis is tilted at what angle?
23.5 Degrees
What is the Ecliptic ?
Is the plane of Earths orbit around the sun
Explanation of Ecliptc ?
It is an imaginary plane surface passing through the centers of the earth and sun so that half of the spheres appear above, and half below, the level of this plane, just as if a ball were floating in water half submerged
What are the 4 small circles on earth ?
Article circle ,Tropic of Cancer,Equator ,Tropic of Capricorn . (sometimes Antarctic Circle is included)