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The LCAS Dictionary of Useful Astronomical Terms

• Abbreviations!
• Airglow
• Albedo
• Apastron and Periastron; Apogee and Perigee; Aphelion and Perihelion
• Astronomical Unit
• Aposelene and Periselene
• Argument of Perihelion
• Astigmatism
• Averted Vision
• Aspheric
• BL Lac Objects
• Blue Moon
• Cataclysmic Variable
• Central Meridian
• Colongitude
• Coordinated Universal Time
• Culmination
• Diffraction Limited
• Eccentricity
• Elongation
• Escape Velocity
• Eye Relief
• Exoplanetisms
• First Light
• Geomagnetic Field
• Geosynchronous and Geostationary
• Ground Level Event
• Hilda Effect
• Incipient Resolution
• Ionization
• Julian Day
• Kidney Bean Effect
• Kuiper Belt
• Limiting Magnitude
• Light Bridge
• Local Group
• Mascon
• Meteoroid
• Metonic Cycle
• Morphology
• Nanometer
• Nebula Night
• Newton's Rings
• Noctilucent Clouds
• Parallax
• Parfocal Eyepieces
• Phase Effect
• Photographic Magnitude
• Position Angle
• Prominences
• Purkinje Effect
• Quadrature
• Radiant
• Red or White Light Images
• Regolith
• Resolving Power
• Retrograde Motion
• Revolution and Rotation
• Shepherd Moons
• Spherical Aberration
• Sublimation
• Synodic Period
• "Theory" Defined
• Turned-Edge
• Twilight
• UT1
• Virgo Infall
• Zodiacal Light? Gegenschein?
• Zonal Defect
• Zone of Avoidance
  
  

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This page last updated on September 12, 2006

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