Back
0

What is the period of the Earth's longitude of perihelion?

Description: The period of the Earth's longitude of perihelion is the time it takes for the Earth's closest approach to the Sun (perihelion) to occur at the same point in its orbit. This quiz will test your knowledge on this astronomical phenomenon.
Number of Questions: 15
Created by:
Tags: astronomy astrochronology earth's orbit
Start the Quiz
Attempted 0/15 Correct 0 Score 0
‹
›

What is the approximate period of the Earth's longitude of perihelion?

  1. 20,000 years

  2. 26,000 years

  3. 32,000 years

  4. 38,000 years

Show answer
Correct Option: B
Explanation:

The period of the Earth's longitude of perihelion is approximately 26,000 years.

What is the primary cause of the variation in the Earth's longitude of perihelion?

  1. Precession of the equinoxes

  2. Nutation of the Earth's axis

  3. Orbital eccentricity

  4. Solar radiation pressure

Show answer
Correct Option: A
Explanation:

The primary cause of the variation in the Earth's longitude of perihelion is the precession of the equinoxes.

How does the precession of the equinoxes affect the Earth's longitude of perihelion?

  1. It causes the Earth's perihelion to move eastward along the ecliptic.

  2. It causes the Earth's perihelion to move westward along the ecliptic.

  3. It causes the Earth's perihelion to remain fixed at a specific point on the ecliptic.

  4. It causes the Earth's perihelion to move randomly along the ecliptic.

Show answer
Correct Option: B
Explanation:

The precession of the equinoxes causes the Earth's perihelion to move westward along the ecliptic.

What is the rate of change of the Earth's longitude of perihelion due to precession?

  1. 50.29 arcseconds per century

  2. 51.26 arcseconds per century

  3. 52.23 arcseconds per century

  4. 53.20 arcseconds per century

Show answer
Correct Option: A
Explanation:

The rate of change of the Earth's longitude of perihelion due to precession is approximately 50.29 arcseconds per century.

What is the relationship between the period of the Earth's longitude of perihelion and the precession of the equinoxes?

  1. The period of the Earth's longitude of perihelion is equal to the period of the precession of the equinoxes.

  2. The period of the Earth's longitude of perihelion is twice the period of the precession of the equinoxes.

  3. The period of the Earth's longitude of perihelion is half the period of the precession of the equinoxes.

  4. The period of the Earth's longitude of perihelion is unrelated to the period of the precession of the equinoxes.

Show answer
Correct Option: A
Explanation:

The period of the Earth's longitude of perihelion is equal to the period of the precession of the equinoxes.

What other factors, besides precession, can affect the Earth's longitude of perihelion?

  1. Nutation of the Earth's axis

  2. Orbital eccentricity

  3. Solar radiation pressure

  4. All of the above

Show answer
Correct Option: D
Explanation:

Nutation of the Earth's axis, orbital eccentricity, and solar radiation pressure can all affect the Earth's longitude of perihelion.

How does nutation of the Earth's axis affect the Earth's longitude of perihelion?

  1. It causes the Earth's perihelion to move eastward along the ecliptic.

  2. It causes the Earth's perihelion to move westward along the ecliptic.

  3. It causes the Earth's perihelion to remain fixed at a specific point on the ecliptic.

  4. It causes the Earth's perihelion to move randomly along the ecliptic.

Show answer
Correct Option: A
Explanation:

Nutation of the Earth's axis causes the Earth's perihelion to move eastward along the ecliptic.

How does orbital eccentricity affect the Earth's longitude of perihelion?

  1. It causes the Earth's perihelion to move eastward along the ecliptic.

  2. It causes the Earth's perihelion to move westward along the ecliptic.

  3. It causes the Earth's perihelion to remain fixed at a specific point on the ecliptic.

  4. It causes the Earth's perihelion to move randomly along the ecliptic.

Show answer
Correct Option: A
Explanation:

Orbital eccentricity causes the Earth's perihelion to move eastward along the ecliptic.

How does solar radiation pressure affect the Earth's longitude of perihelion?

  1. It causes the Earth's perihelion to move eastward along the ecliptic.

  2. It causes the Earth's perihelion to move westward along the ecliptic.

  3. It causes the Earth's perihelion to remain fixed at a specific point on the ecliptic.

  4. It causes the Earth's perihelion to move randomly along the ecliptic.

Show answer
Correct Option: B
Explanation:

Solar radiation pressure causes the Earth's perihelion to move westward along the ecliptic.

What is the significance of the Earth's longitude of perihelion?

  1. It affects the Earth's seasons.

  2. It affects the Earth's climate.

  3. It affects the Earth's orbit around the Sun.

  4. All of the above

Show answer
Correct Option: D
Explanation:

The Earth's longitude of perihelion affects the Earth's seasons, climate, and orbit around the Sun.

How does the Earth's longitude of perihelion affect the Earth's seasons?

  1. It determines the length of the seasons.

  2. It determines the timing of the seasons.

  3. It determines the temperature of the seasons.

  4. All of the above

Show answer
Correct Option: D
Explanation:

The Earth's longitude of perihelion affects the length, timing, and temperature of the seasons.

How does the Earth's longitude of perihelion affect the Earth's climate?

  1. It determines the Earth's average temperature.

  2. It determines the Earth's climate zones.

  3. It determines the Earth's precipitation patterns.

  4. All of the above

Show answer
Correct Option: D
Explanation:

The Earth's longitude of perihelion affects the Earth's average temperature, climate zones, and precipitation patterns.

How does the Earth's longitude of perihelion affect the Earth's orbit around the Sun?

  1. It determines the Earth's orbital eccentricity.

  2. It determines the Earth's orbital period.

  3. It determines the Earth's orbital inclination.

  4. All of the above

Show answer
Correct Option:
Explanation:

The Earth's longitude of perihelion does not affect the Earth's orbital eccentricity, orbital period, or orbital inclination.

What is the current value of the Earth's longitude of perihelion?

  1. 280 degrees

  2. 281 degrees

  3. 282 degrees

  4. 283 degrees

Show answer
Correct Option: C
Explanation:

The current value of the Earth's longitude of perihelion is approximately 282 degrees.

When was the last time the Earth's longitude of perihelion occurred at the same point in its orbit?

  1. 10,000 years ago

  2. 15,000 years ago

  3. 20,000 years ago

  4. 25,000 years ago

Show answer
Correct Option: C
Explanation:

The last time the Earth's longitude of perihelion occurred at the same point in its orbit was approximately 20,000 years ago.

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions