- 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.
The point of the celestial sphere directly overhead, 90 degrees above the horizon, for any point on earth; it is the point where a plumb line extended upward would intersect the celestial sphere.
Industry:Astronomy
Transforming a hostile environment into one able to sustain human life; this includes a source of oxygen, water, plant life, and correct air pressure and temperature.
Industry:Astronomy
The point in a planet's orbit in which it is closest to earth. When viewing a planet it will appear on the opposite side of the sky as the sun. Two bodies are in opposition when the difference in celestial longitude is 180 degrees.
Industry:Astronomy
The remote operation of a device. In the field of telerobotics, robotics and teleoperations are merged to produce a remotely operated robot.
Industry:Astronomy
1. An instrument that provides its data readout to a location remote from the sensing device; 2. To transmit data to a remote point.
Industry:Astronomy
A measure of a system's ability to control a robot's tool tip.
Industry:Astronomy
A celestial coordinate; it is the angular distance measured from the vernal equinox eastward along the celestial equator to the hour circle of a given star or other celestial body. It can be defined also as the arc of the celestial equator or the angle at the celestial pole between the hour circle of the vernal equinox and the hour circle of the body.
Industry:Astronomy
Backward (westward) motion of the planet among the stars, resulting from the fact that it is viewed from the moving earth. It is the motion that a planet has when its right ascension is decreasing. Each year, when Earth passes a superior planet, such as Mars, the planet appears to move backward for a short time. It is the same effect you see when two trains are running in the same direction on side by side tracks. The slower train appears to be moving backward.
Industry:Astronomy
