- Industry: Aerospace
- Number of terms: 16933
- Number of blossaries: 2
- Company Profile:
The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
Great circles that pass through both the north and south poles, also called lines of longitude.
Industry:Aerospace
Time based on an average of the variations caused by Earth's non-circular orbit. The 24-hour day is based on mean solar time.
Industry:Aerospace
A fundamental property of an object comprising a numerical measure of its inertia; the amount of matter in the object. While an object's mass is constant (ignoring Relativity for this purpose), its weight will vary depending on its location. Mass can only be measured in conjunction with force and acceleration.
Industry:Aerospace
Great circles that pass through both the north and south poles, also called meridians.
Industry:Aerospace
Time adjusted for location around the Earth or other planets in time zones.
Industry:Aerospace
A measure of distance, the distance light travels in one year, about 63,197 AU.
Industry:Aerospace
Every fourth year, in which a 366th day is added since the Earth's revolution takes 365 days 5 hr 49 min.
Industry:Aerospace
