Astronomy Final Review (F2024)

Front

When is Earth farthest from the Sun?

Back

Earth is farthest from the Sun in July, a point known as aphelion.

Front

What is a 'Blue Moon'?

Back

A 'Blue Moon' refers to the occurrence of two full moons in a single calendar month.

Front

Who formulated the Laws of Planetary Motion?

Back

The Laws of Planetary Motion were formulated by Johannes Kepler.

Front

Which planet is the coldest in our solar system?

Back

Neptune is the coldest planet in our solar system.

Front

Who confirmed the existence of other galaxies?

Back

Edwin Hubble is credited with confirming the existence of other galaxies.

Front

What is the significance of the aphelion in Earth's orbit?

Back

Aphelion is the point in Earth's orbit where it is farthest from the Sun, affecting seasonal temperatures.

Front

Define the term 'galaxy'.

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the difference between a solar and lunar eclipse?

Back

A solar eclipse occurs when the Moon passes between Earth and the Sun, blocking sunlight; a lunar eclipse occurs when Earth passes between the Sun and the Moon, casting a shadow on the Moon.

Front

What is the role of gravity in planetary motion?

Back

Gravity is the force that keeps planets in orbit around the Sun, maintaining their paths and preventing them from drifting into space.

Front

Explain the concept of light-years.

Back

A light-year is the distance that light travels in one year, approximately 5.88 trillion miles (9.46 trillion kilometers), used to measure astronomical distances.