Category Archives: IAU

How do we name our Solar System?

We all remember learning the mnemonic device in elementary school: My Very Excellent Mother Just Served Us Noodles (or whatever variation you prefer). Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, the eight planets of our solar system. But what do these names actually mean? How do planets and moons and other stuff inContinue reading “How do we name our Solar System?” Continue reading Continue reading

Posted in astro2110, blog4, dwarfplanets, IAU, Moons, planets, Solar System: Dwarf Planets, Solar System: Jovians, Solar System: Moons, Solar System: Terrestrials | Comments Off on How do we name our Solar System?

Naming Exoplanets: Explained

So you’ve just discovered an exoplanet via the Astrometric method, the Doppler method, the Transit method, or some other scheme. … More Continue reading Continue reading

Posted in astro2110, blog6, Class, Exoplanets, General, IAU, WoW | Comments Off on Naming Exoplanets: Explained

The definition of “planet”

Ever since the IAU gathered in Prague in 2006 and published a new scientific definition of “planet”, there has been debate on how well they did, and whether they were right to “demote” Pluto from planet to the new “dwarf planet” classification. I aim here to critique the IAU’s definition of a planet. First, here […] Continue reading Continue reading

Posted in astro201, blog7, Class, dwarf planet, Historical, IAU, physics, planet, pluto, science, Solar System, Universe | Comments Off on The definition of “planet”