Gigameter (Gm)
Definition: A gigameter (Gm) is a unit of length equal to one billion meters (10^9 meters). It is used to describe large-scale distances, typically in astronomy and astrophysics.
History: The gigameter is part of the International System of Units and was introduced to handle extremely large measurements that are common in space science and the study of galaxies.
Current Use: Gigameters are used primarily in astronomy for measuring distances between large-scale celestial objects, such as stars, galaxies, and intergalactic spaces. It helps scientists express the vast scale of the universe.
Megameter (Mm)
Definition: A megameter (Mm) is a unit of length equal to one million meters (10^6 meters). It is used to measure large distances in both geography and astronomy.
History: The megameter was introduced alongside other metric units to standardize measurements of large distances. It has been mainly used in astronomical contexts to simplify expressions of distances in space.
Current Use: Megameters are used in astronomy to describe distances between astronomical objects such as the Earth and the Sun. They also appear in some applications in geology and planetary science.
Quick Conversion Table Gigameter (Gm) to Megameter (Mm)
1 Gigameter (Gm) equal to 1,000 Megameter (Mm)
5 Gigameter (Gm) equal to 5,000 Megameter (Mm)
10 Gigameter (Gm) equal to 10,000 Megameter (Mm)
20 Gigameter (Gm) equal to 20,000 Megameter (Mm)
30 Gigameter (Gm) equal to 30,000 Megameter (Mm)
50 Gigameter (Gm) equal to 50,000 Megameter (Mm)
75 Gigameter (Gm) equal to 75,000 Megameter (Mm)
100 Gigameter (Gm) equal to 100,000 Megameter (Mm)