Earth-Moon-Sun relative sizes

Constellations (know the six selected constellations and their bright stars)
Star Names, Bayer Designations, Flamsteed Numbers, Catalog Designations
Magnitudes, Star Charts

Earth, Rotation, North Pole, South Pole, Equator, Directions on Earth
Celestial Sphere, Celestial Poles (NCP,SCP), Celestial Equator, Directions on the Celestial Sphere
Zenith, Nadir, Horizon
Diurnal Motion, Star Trails, Circumpolar, North Star, Polaris

Revolution, Astronomical Unit, Ellipse, Aphelion, Perihelion
Ecliptic, Obliquity, Vernal Equinox, Autumnal Equinox, Summer Solstice, Winter Solstice
Tropic of Cancer, Tropic of Capricorn, Arctic Circle, Antarctic Circle, Midnight Sun
Seasons, Thermal Lag, Sunrise/Sunset Directions
Zodiac, Precession

Moon Orbit, Apogee, Perigee, Sidereal Period, Synodic Period, Lunar Rotation
Lunar Phases, New, First Quarter, Full, Last Quarter, Third Quarter
Waxing Crescent, Waxing Gibbous, Waning Gibbous, Waning Crescent
Earthshine, Moon Rise/Set Time, Moon Rise/Set Direction
Tides, High Tide, Low Tide, Spring Tide, Neap Tide

Eclipse, Shadow, Umbra, Penumbra
Lunar Eclipse, Total, Partial, Penumbral
Solar Eclipse, Total, Partial, Annular
Nodes, Eclipse Seasons, Eclipse Track

Electromagnetic Radiation, Photon, Wavelength, Speed, Frequency, Energy, Color, Angstrom
Electromagnetic Spectrum, Radio, Microwave, Infrared, Visible, Ultraviolet, X-Ray, Gamma Ray