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This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. The field of astronomy features an extensive vocabulary and a ...
RLOF – (astrophysics terminology) Roche Lobe Overflow, the result of when an object in a binary system is larger than its roche lobe (i.e. when an object in a binary system expands to a radius where tidal forces become stronger than gravitational forces) RLQ – (celestial object) radio loud quasar, a quasar that produces strong radio emission
Lists of space scientists; Lists of spacecraft This page was last edited on 23 September 2024, at 05: ... additional terms may apply. By using this site, ...
Mechanical term ADM 1: Aeronautical decision-making [5] Piloting term of judgment ADM 2: Air data module: ADN Aircraft Data Network: Ethernet derivative for Commercial Aircraft ADS 1: Air data system ADS 2: Automatic dependent surveillance: ADS-A Automatic dependent surveillance – address ADS-B Automatic dependent surveillance – broadcast ...
A A&TWF – Acquisition and technology work force a – Army AA – Assembly area AA – Anti-aircraft AA – Aegis ashore AAA – Anti-aircraft artillery "Triple A" AAAV – Advanced Amphibious Assault Vehicle AAC – Army Air Corps AAD – Armored amphibious dozer AADC – Area air defense commander AAE – Army acquisition executive AAG – Anti-aircraft gun AAK – Appliqué armor kit (US ...
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This is a list of established military terms which have been in use for at least 50 years. Since technology and doctrine have changed over time, not all of them are in current use, or they may have been superseded by more modern terms. However, they are still in current use in articles about previous military periods.
In mathematics, a spherical coordinate system is a coordinate system for three-dimensional space where the position of a given point in space is specified by three real numbers: the radial distance r along the radial line connecting the point to the fixed point of origin; the polar angle θ between the radial line and a given polar axis; [a ...