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AAAM |
Active Amateur Astronomers of Maryland |
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AAS |
American Astronautical Society |
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AAS |
Archaeology, Astronautics, and Seti |
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AAT |
Anglo Australian Telescope |
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AAVSO |
American Association of Variable Star Observers |
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ABB |
After the Big Bang |
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ABBA |
ADC Backend For Bolometer Array |
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ABF |
Astronomische Beeldverwerkings Faciliteiten |
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AC |
Ascendant Cusp |
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AC |
Active Coronae |
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ACA |
Atacama Compact Array |
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ACIT |
Automatic Comet Imaging Telescope |
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ACRIM |
Active Cavity Radiometer Irradiance Monitor |
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ACT |
Astrographic Catalog Tycho |
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ACTS |
Advanced Communications Technology Satellite |
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AD |
Astronomsko Drustvo |
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ADAF |
Advection-Dominated Accretion Flow |
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ADAS |
Asiago DLR Asteroid Survey |
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ADIL |
Astronomy Digital Image Library |
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ADS |
Astrophysics Data System |
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ADU |
Astronomical Distance Unit |
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AEA |
Atomic Energy Agency |
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AEG |
Astro Event Group |
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AET |
Accuracy Enhancing Technology |
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AGN |
Active Galaxy Nucleus |
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