Fun Astronomy Facts

Moon Phase





Understanding The Moon Phases


Have you ever wondered what causes the moon phases? We all know that its appearance changes over time. But why? The good way to understand the phases of the moon is to examine an earth-moon-sun diagram:



Current World Sun Light Maps



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Your Weight on other Worlds - Calculator

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The Planets

Mercury
Diameter:
4,880 km
Mass:
3.30e23 kg

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Venus
Diameter:
12,103.6 km
Mass:
4.869e24 kg

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Mars
Diameter:
6,794 km
Mass:
6.4219e23 kg

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Jupiter
Diameter:
142,984 km
Mass:
1.900e27 kg

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Saturn
Diameter:
120,536 km
Mass:
5.68e26 kg

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Uranus
Diameter:
51,118 km
Mass:
8.683e25 kg

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Neptune
Diameter:
49,532 km
Mass:
1.0247e26 kg

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Pluto
Diameter:
2274 km
Mass:
1.27e22 kg

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Our Moon

The Moon
Diameter:
3476 km
Mass:
7.35e22 kg

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The Moons of Jupiter

IO
Diameter:
3630 km
Mass:
8.93e22 kg

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Europa
Diameter:
3138 km
Mass:
4.80e22 kg

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Ganymede
Diameter:
5262 km
Mass:
1.48e23 kg

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Callisto
Diameter:
4800 km
Mass:
1.08e23 kg

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A Few Different Types of Stars

The Sun
Diameter:
1,390,000
Mass:
1.989e30 kg

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White Dwarf
Diameter:
1,390,000
Mass:
1.989e30 kg

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Neutron Star




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Your Age and Next Birthday on other Planets - Calculator


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