Astronomy Club South Africa
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Astronomy Basics
The Solar System
The Solar System and its Place in the Galaxy
The Origin of the Solar System
Mercury
Venus
Earth
Moon
Lunar Exploration
Glossary
GLAgencies
Astro Software
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a
Albedo Feature
Altitude
Antimatter
Antipodal Point
Apastron
Aperture
Aphelion
Apogee
Apparent Magnitude
Asteroid
Astrochemistry
Astronomical Unit (AU)
Atmosphere
Aurora
Aurora Australis
Aurora Borealis
Axis
Azimuth
b
Bar
Big Bang
Binary
Black Hole
Black Moon
Blue Moon
Blueshift
Bolide
c
Celestial Poles
Circumstellar Disk
Coma
Comet
Conjunction
Corona
d
Dark Matter
Debris Disk
Declination
Density
Disk
Doppler Effect
Double Asteroid
Double Star
Dwarf Planet
e
Eccentricity
Escape Velocity
j
Jet
k
Kelvin
l
Local Group
Luminosity
n
Nadir
Nova
Nuclear Fusion
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Obliquity
p
Perturb
r
Red Giant
s
Satellite
Spiral Galaxy
Star
Star Cluster
Steady State Theory
Stellar Wind
Stone Meteorite
Stony Iron
Sunspot
Supernova
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Tektite
Telescope
Terminator
Terrestrial
Terrestrial Planet
Tidal Force
Tidal Heating
Trans-Neptunian Object (TNO)
Trojan
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Ultraviolet
Umbra
Universal Time (UT)
v
Van Allen Belts
Variable Star
Virgo Cluster
Visible Light
Visual Magnitude
w
Wavelength
White Dwarf
x
X-ray
X-ray Astronomy
X-ray Star
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Yellow Dwarf
z
Zenith
Zodiac
Zodiacal Light
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Useful Links
AstroBin
Image hosting for Astrophotographers
Astrometry
Free plate-solving
Astronomy Tools
Collection of useful astronomy tools
Clear Outside
7-days weather forecast
CloudyNights
Your astronomical community
Light Pollution Map
Interactive world light pollution map
MeteoBlue
3-days weather forecast
Polaris Finder
Takahashi Online Polaris Finder
Stargazers Lounge
Astronomy Discussion Forum
Telescopius
Astronomy planning made easy
Twilight Calculator
Twilight calculator, blue hour, golden hour