- 업종: 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.
L'ocultació d'un sol cos celestial per un altre, com quan la lluna passa entre la terra i l'estrella, o quan una de les llunes de Júpiter o saturn passa darrere del planeta.
Industry:Astronomy
A measure for distances within the solar system, equal to the mean ditance of the earth from the sun, which is about 93,000,000 miles.
Industry:Astronomy
The straight line, real or imaginary, passing through a rotating body and is the line about which that body rotates.
Industry:Astronomy
The distance in degrees along the horizon, westward from the south point of the horizon, to the place where a vertical circle through the star or other object intersects the horizon.
Industry:Astronomy
The deflection of particles or radiation by scattering processes through angles greater than 90 degrees with respect to the original direction of motion.
Industry:Astronomy
The amount of matter in a unit volume of a substance; usually the mass per unit of volume.
Industry:Astronomy
