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Astronomy Website
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Astronomers and Other Great Scientists
Aristarchus
Aristotle
Brahe
Copernicus
Einstein
Eratosthenes
Galileo
Hipparchus
Kepler
Newton
Ptolemy
Celestial Navigation
Celestial Coordinate Systems
Determining Your Latitude in the Northern Hemisphere
Geographical Zones
Latitude and Longitude
Laws of Physics
Energy
Momentum
Newton's Laws of Motion
Newton's Universal Law of Gravity
Weightlessness and Satellites
Light
General Considerations
Light's Wave Nature
Spectra
The Doppler Effect
The Electromagnetic Spectrum
Wien's and Stefan's Laws
Miscellaneous
Periodic Table of Elements in Video Format
Solar Flares and Wally
Star Wars Error - Parsec
Numbers
Distance Speed Calculator
Ellipses
Orders of Magnitude
Radian Measure of Angle
Stellar Parallax
Trigonometry Review
Observatories
Earth-based Observatories
LIGO
Neutrino Observatories
Radio Wave Observatories
Space-based Observatories
Types of Telescopes
Principles
Occam's Razor
The Anthropic Principle
The Copernican Principle (Cosmological Principle)
The Solar System
Asteroids
Comets
KBOs
The Earth
Atmospherics
Meteoroids, Meteors and Meteorites
Google Earth
Precession of the Earth
Solar Eclipses
The Seasons
Twilight, Dawn and Dusk
The Moon
Apollo Missions
Lunation with Libration
Moon Day, Moon Month
Seasons Revealed by the Moon's Shadow Line
Sidereal Versus Synodic Month
The Planets
Inferior and Superior Planets
Mars
Mars in Opposition and Conjunction
Planetary Motions
Aphelion vs Perihelion
Deferents and Epicycles
Geocentric Motion Viewed From Outer Space
Heliocentric View of Planetary Motion - First Six Planets
Kepler's Laws
Opposition and Conjunction
Retrograde Motion
The Geocentric Model of the Solar System
The Heliocentric Model of the Solar System
The Jovians
The Terrestrials
Venus
Phases of Venus
Transit of Venus
The Sun
Sun Motions
Analemmas
North Pole - 24 Hour Day
North Pole Yearly Illumination
Solar Determination of Your Latitude
Solar Projection Onto the Ecliptic
Sun Moving Through the Zodiac at the Equator, Noon Time
Yearly Solar Declination Variation at the Equator
The Stars
Solar and Stellar Declination and Altitude
Star Motions
Circumpolar - Chicago Latitude
Circumpolar - Equator
Stars and Their Patterns
Arcturus
The Death of Stars
The H-R Diagram
The Universe
Cosmology
Exobiology - Life Beyond Earth?
The Expanding Universe
The Milky Way
Timing Considerations
Sidereal vs Solar Day
Sidereal vs Synodic Month
Sidereal vs Tropical Year
Sun Dials
Time Zones
Astronomy Website
Star Wars Error - Parsec
See how Hans Solo erroneously refers to the unit parsec as a unit of time by clicking
here
.
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