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PBO |
Pine Bluff Observatory |
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PC |
Planetary Contrast |
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PDS |
Planetary Data System |
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PGC |
Principal Galaxy Catalog |
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PHA |
Potentially Hazardous Asteroid |
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PIFOV |
Planet In Field Of View |
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PLE |
Partial Lunar Eclipse |
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PN |
Planetary Nebulae |
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PNS |
Pulsed Neutron Source |
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PNX |
Pulsar Network Exchange |
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PO |
Primary Object |
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POSS |
Palomar Observatory Sky Survey |
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PSLV |
Polar Satellite Launch Vehicle |
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PST |
Personal Solar Telescope |
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PX |
Planet Xtraterrestrial |
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QBSA |
Quarterly Bulletin on Solar Activity |
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QHO |
Quail Hollow Observatory |
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QSO |
Quasi-Stellar Object |
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QTG |
Quantum Theory of Gravity |
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QZ |
Quasi Zenith |
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R |
Ray |
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R&R |
Reproducibility And Repeatability |
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RAA |
Relative Azimuth Angle |
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RAMBO |
Robust associations of massive baryonic objects |
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RAPT |
Reynolds Amateur Photometry Team |
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