Shape and size of Gyrd
Overview
Compared to real-life Earth, Gyrd (English pronunciation: GEERD) is, like real-life Earth, an oblate spheroid in shape, but Gyrd is larger in size, but not as dense, than real-life Earth.
Shape of Gyrd
Gyrd's mean radius is 12,725 kilometers at Gyrd's mean sea level, or nearly twice the mean radius of real-life Earth. Gyrd's polar radius is approximately 12,695 kilometers, and its equatorial radius is approximately 12,755 kilometers. This gives Gyrd a flattening of slightly more than 0.0047, or approximately 1.4 times as much as that of real-life Earth. Since Gyrd's polar and equatorial radii are known, Gyrd's polar circumference, equatorial circumference, volume, and surface area can be calculated. Gyrd's polar circumference at mean sea level is approximately 79,765 kilometers, and Gyrd's equatorial circumference at mean sea level is approximately 80,142 kilometers. Gyrd's total surface area at mean sea level is slightly more than 2,038,014,811 square kilometers, or nearly four times as much surface area as real-life Earth. Gyrd's total volume at mean sea level is slightly less than 8,651,317,293,701 cubic kilometers, or nearly eight times as much as that of real-life Earth.
Size of Gyrd
It should be noted that neither mass or density is the same concept as volume, although the concepts are related to each other, as density is the amount of mass per unit of volume. Gyrd is noticeably less dense than real-life Earth. Gyrd's mean density is approximately 3.3 grams per cubic centimeter, which is considerably less dense than real-life Earth, and slightly less dense than the real-life Moon. This means that Gyrd's mass is roughly 2.85*(10^25) kilograms, or slightly more than 4.77 times as much mass as real-life Earth. While a person on Gyrd would have the same mass that he/she has on real-life Earth, he/she would weigh more on Gyrd than on real-life Earth due to Gyrd having a stronger surface gravity than real-life Earth. As Gyrd's surface gravity can be estimated by dividing its mass as a multiple of real-life Earth's mass by the square of its mean radius as a multiple of real-life Earth's radius, Gyrd's surface gravity is approximately 1.193 times that of real-life Earth, or approximately 11.69 meters per second squared, meaning that a person who weighs 100 kilograms on real-life Earth would weigh approximately 119.3 kilograms on Gyrd.
Compared to real-life Earth, Gyrd (English pronunciation: GEERD) is, like real-life Earth, an oblate spheroid in shape, but Gyrd is larger in size, but not as dense, than real-life Earth.
Shape of Gyrd
Gyrd's mean radius is 12,725 kilometers at Gyrd's mean sea level, or nearly twice the mean radius of real-life Earth. Gyrd's polar radius is approximately 12,695 kilometers, and its equatorial radius is approximately 12,755 kilometers. This gives Gyrd a flattening of slightly more than 0.0047, or approximately 1.4 times as much as that of real-life Earth. Since Gyrd's polar and equatorial radii are known, Gyrd's polar circumference, equatorial circumference, volume, and surface area can be calculated. Gyrd's polar circumference at mean sea level is approximately 79,765 kilometers, and Gyrd's equatorial circumference at mean sea level is approximately 80,142 kilometers. Gyrd's total surface area at mean sea level is slightly more than 2,038,014,811 square kilometers, or nearly four times as much surface area as real-life Earth. Gyrd's total volume at mean sea level is slightly less than 8,651,317,293,701 cubic kilometers, or nearly eight times as much as that of real-life Earth.
Size of Gyrd
It should be noted that neither mass or density is the same concept as volume, although the concepts are related to each other, as density is the amount of mass per unit of volume. Gyrd is noticeably less dense than real-life Earth. Gyrd's mean density is approximately 3.3 grams per cubic centimeter, which is considerably less dense than real-life Earth, and slightly less dense than the real-life Moon. This means that Gyrd's mass is roughly 2.85*(10^25) kilograms, or slightly more than 4.77 times as much mass as real-life Earth. While a person on Gyrd would have the same mass that he/she has on real-life Earth, he/she would weigh more on Gyrd than on real-life Earth due to Gyrd having a stronger surface gravity than real-life Earth. As Gyrd's surface gravity can be estimated by dividing its mass as a multiple of real-life Earth's mass by the square of its mean radius as a multiple of real-life Earth's radius, Gyrd's surface gravity is approximately 1.193 times that of real-life Earth, or approximately 11.69 meters per second squared, meaning that a person who weighs 100 kilograms on real-life Earth would weigh approximately 119.3 kilograms on Gyrd.
©2019 by Aaron A. Camp. All rights reserved.
This website does not make or imply any claim of sovereignty or control over any real-life country, nation, state, area, territory, or jurisdiction, and all content on this website is fictional unless otherwise stated.
This website does not make or imply any claim of sovereignty or control over any real-life country, nation, state, area, territory, or jurisdiction, and all content on this website is fictional unless otherwise stated.